Prep & packing

Pack this, and not much more

17 nights, packing light: a cabin bag each plus one checked bag for the two of you, and one laundry stop (the Paris studio, or a laverie). October runs warm in Barcelona and Rome (~70°F days), cool and damp in Paris and London (~55°F, dark by 16:30). Everything below layers. Buy full-size toiletries, sunscreen and blister plasters at a pharmacy on day one, they are cheap and everywhere, and the French pharmacies are a highlight in themselves.

The bag

• A cabin bag each + one checked bag between you + a packable daypack worn in front. Keep it to the one checked bag, a second adds ~$50 a leg on the budget flights. Everything on the two long-haul legs (LAX, LHR) includes the checked bag in the fare.
• Two universal adapters (they cover both UK Type G and EU Type C) + one small multi-port USB charger.
• No-foreign-transaction-fee card as primary, a backup card for the apartment safe. ~€50-100 each per day in cash for markets and tips.
• A foldable tote. Two refillable bottles (Rome's street fountains are clean, refill everywhere).
• One compact travel umbrella, shared, Paris and London will earn it. Everything else can be a cheap buy on the first wet day.
• Passport + a photo of it on your phone + a paper copy kept separately. eSIM installed before you fly.
• A corkscrew for the room, put a waiter's friend in the checked bag (the little knife can't go carry-on), or buy a €3 one on day one. You love wine; don't get caught out.
• Full-size toiletries and sunscreen can ride in the checked bag now, but buying them at a pharmacy on day one is still cheaper and keeps the bag under the weight limit for the budget flights.

Two kits worth packing on purpose

The long-haul under-seat kit (LAX-BCN and LHR-LAX)

• Pack this as one pouch and keep it under the seat, not in the overhead bin: compression socks, eye mask, earplugs, an empty refillable bottle, lip balm, moisturiser, a travel toothbrush + toothpaste, your regular meds, a hoodie or light layer, phone cable, power bank, a small snack, passport, and a backup card.
• Both long-haul travel days on this site just say “long-haul kit packed”, this is what that means.

The daypack, walking-day foot kit

• Hydrocolloid blister plasters (Compeed-type), a couple of regular bandages, an anti-chafe stick, and one spare pair of socks, kept in the daypack every day, not just on the big ones.
• Treat a hot spot before it becomes a blister. Five minutes with a plaster the moment you feel a rub saves several painful walking days. The heaviest days flag this as a reminder.

The Sudoku Method, the clothes plan

The idea Le Andra found: pack clothes like a Sudoku grid. Nine pieces each, 3 tops, 3 bottoms, 3 layers. The one rule, borrowed from the puzzle: every piece has to work with every other piece. Lay them out three by three, one top / one bottom / one layer per row and per column, and if every square makes an outfit, you did it right.

The math: 3 tops × 3 bottoms × 3 layers = 27 outfits from 9 pieces. Two pairs of shoes makes it 54; two scarves makes every one of those look different again. More than enough for 17 days with one wash, out of a carry-on.

The rules that make it work

• One tight palette. Two neutrals that everything shares (navy + cream, or black + camel) and one accent, nothing else. If two pieces don't go together, one of them is wrong, fix it before you pack.
• The three layers carry this trip, because it spans two climates: a light knit for Barcelona and Rome, a warm sweater and one smart layer (a blazer or a tailored knit) for Paris, London and the churches.
• Outside the grid, worn or carried, not counted: a proper warm coat, gym clothes, underwear, socks, sleepwear.
• One bonus piece each: a packable dress (her) or the blazer doubling up (him), an instant dinner outfit that needs no square.
• You're shopping for this, so buy to the grid: merino wool tops (warm layered, cool bare, no smell, packs to nothing), one palette, and hold every new piece against two you already own before it comes home.

The dress code, for him

One shopping trip, one palette: navy and charcoal as the two base neutrals, oatmeal as the warm light one, mid-blue denim, and burgundy as the single accent. Every piece below is one of those colours, so any top goes with any bottom goes with any layer.

Everyday walk: oatmeal tee, jeans, grey knit    Smart-casual / church: navy tee, charcoal chino, overshirt    The big dinner: charcoal polo, charcoal chino, navy blazer.  Every other path through the grid is an outfit too, 27 in all.

Shoes, two pairs

A clean white leather sneaker for the day (does gym duty), a dark-brown suede derby or low boot for dinner. Belt in the same brown. Brown reads warmer with navy and burgundy than black does.

Outside the grid

• 4 undershirts, 7 underwear, 5-6 pairs of merino socks, 1 set of sleepwear, a reversible belt, the collar stays for the polo.
• 1 packable warm jacket or light puffer for Paris and London, worn or carried.
• 1 burgundy or grey merino scarf, church shoulders, Paris evenings, and it's the accent. 1 cap; a beanie only if you run cold. Skip the gloves.
• Your workout hoodie can also be a casual evening layer, but keep the gym set separate (below).

Shoes, two pairs

• 1 broken-in walking shoe (does gym duty too).
• 1 that works for dinner, a dark leather sneaker or a smart low shoe.
• Shower sandals: bring lightweight ones that double as apartment slippers, or buy €3 flip-flops there.

Gym, keep it minimal

• 2 sets of gym clothes. Your swim shorts can be the second pair of shorts, or leave them, there is no pool day.
• Pre-workout as a few single-serve stick packs, not the tub (a tub of powder invites a bag search). The refillable bottle covers both pre-workout and the day.

Meds and health, carry-on, original packaging

• Your regular allergy meds (Claritin-D type) and a Benadryl equivalent, bring enough: diphenhydramine is not sold over the counter in much of Europe, and pseudoephedrine is behind the counter or restricted.
• Nasal spray, daily vitamins, ibuprofen / paracetamol, Imodium, rehydration salts. Blister plasters live in the daypack foot kit above; top up at any pharmacy, they're on every shelf.
• Any prescriptions in their original bottles + a photo of the scripts. A couple of masks for the plane if you want them.

Electronics, one device

• iPad only (leave the laptop unless you truly need it). Download shows, films and the trip PDFs offline, and sign in to the logins before you fly.
• One small Bluetooth speaker. Leave the HDMI cable unless you know you'll plug into a TV.
• Chargers and cables for what you actually brought, nothing spare.
• Power bank, cabin only, always. Power banks and spare lithium batteries stay in carry-on baggage, never checked. If a bag gets gate-checked, pull the power bank out first.

The dress code, for her

Straight off the pieces you were laying out: black and camel as the two base neutrals, cream as the light one, mid-blue denim, and soft slate blue as the accent (it picks up the paisley scarf). One trip, one palette, everything mixes.

Everyday: cream henley, jeans, blue-grey knit    Layered day: camel knit, black trousers, blue-grey knit    The big dinner: black on black, the blazer.  Every other path through the grid is an outfit too, 27 in all.

Plus the packable knit midi dress (black or camel), a standalone outfit that needs no square, and the Burberry camel-check + blue paisley scarves as the resetters.

Shoes, two pairs

A low white or tan sneaker for walking, a black ankle boot for dinners and the cool days. Black boot goes with black, camel, cream and denim, the most-combinable dressy shoe for this trip. Day bag the tan crossbody, a small black clutch for dinner.

Bonus piece + outside the grid

• 1 packable knit midi dress (black or camel), an instant dinner outfit (Le Train Bleu, The Ivy), and church-ok with a scarf. No grid square needed.
• Tights / opaque leggings, October gold, warmth plus instant knee cover in churches.
• 7 underwear, 2-3 bras, sleepwear, socks.
• 1 warm packable coat or trench for Paris and London. The waxed olive jacket only if there's room, it overlaps the coat.
• The Burberry camel-check and the blue paisley scarves, the outfit-resetters, worn as wraps in the cold churches too.

Shoes, two pairs

• 1 broken-in walking shoe.
• 1 low ankle boot or dressy flat that carries a dinner and still walks a cobbled street.

Rotate the two pairs when you can, rather than wearing the same one every day. Put the proven walking shoe on the 15,000-20,000 step days and let the other pair air out and dry overnight.

Toiletries, skincare, the rest

• Travel sizes only. Skincare and a few pharmacy treats are worth buying in Paris, the pharmacies are famous for a reason.
• A minimal makeup kit. Leave the good jewellery at home, bring only what you'd be fine losing.
• Enough of your preferred feminine-hygiene products, the brands differ over there. Hand cream and lip balm for the planes and the cold.
• Skip the hair dryer, the apartments and hotels have one. A dual-voltage travel styler with an EU/UK plug only if you truly need a specific one.

Shared, health and safety

• A small anti-theft crossbody each, worn in front on the metro, the guide flags pickpockets in every city.
• Meds kit as on his list. Any prescriptions in original bottles.
• Graduated compression socks, 1-2 pairs each, properly fitted knee-highs, for both long-haul legs (LAX to Barcelona, LHR to LAX), and any other unusually long seated travel day. They help with circulation on a long flight, they don't replace getting up and moving, so still get up and walk, or flex your ankles and calves in the seat, every hour or two. Cheap, packs to nothing, keep them in the long-haul kit above, not the checked bag. If either of you has a known clot risk, recent surgery, a prior DVT/PE, or another significant risk factor, ask your doctor whether to take any extra precautions for a long flight.
• Split the backup up. Each of you carries your own primary card, a backup card, a little cash, the night's address, and an emergency contact, separately from each other, not both backups in one bag or wallet. A photo of the passport photo page too.

What a week off the grid looks like

Same nine pieces, different day

• Barcelona or Rome, warm afternoon: any top + jeans or a chino, the layer tied round the shoulders or left at the apartment. Walking shoes.
• Cool Paris morning: top + bottom + the merino sweater, scarf on. Walking shoes.
• A church day (Sagrada, the Vatican, the Abbey): any top + a knee-covering bottom (chino, trousers, the skirt) + the scarf over the shoulders.
• The big dinner (Le Train Bleu, The Ivy): the “nice” top + a dark bottom + the blazer + the dressy shoes. Her: the dress + blazer + boots.
• A travel day: wear the coat and the bulkiest layer, pack everything else flat.

Leave it home, buy it there

Cut from the usual bag

• Bath towels, every apartment and hotel supplies them. A beach towel only if you actually plan to lie on Barceloneta sand, which is a maybe in mid-October; if the afternoon turns warm, buy a €6 one at a Barceloneta stall and leave it, or let it be your picnic blanket for the Búnkers and the Seine.
• Clothes steamer, bulky and a voltage risk; hang things in the bathroom during a hot shower, or the Marriott has an iron and a steamer.
• Toilet paper / wipes, that is a Mexico-trip habit; Europe is fine.
• Full-size sunscreen and toiletries, one small sunscreen for day one, then buy from a pharmacy.
• The laptop, spare watch bands, the HDMI cable, gloves.
• Detergent, bring 3-4 laundry sheets for the one wash, not a bottle.

What to buy on the ground

The short shopping list, by stop, with the errand time already worked into the day it belongs to. Groceries, coffee and pastries are a near-daily small spend and sit in each day’s food line, not here.

Only the arrival basics (~$40) and the plasters (~$12) are counted in the budget, on Day 2. The rest is either optional or already its own line.

Do, don't, be ready for

Do

• Be at European airports 2.5-3 hrs early, US passport control adds time even on “domestic” legs.
• Travel between cities late morning. You lose no sightseeing and you make check-in.
• Ask the host, then walk two streets off the landmark. Photos on the menu or a tout out front = walk on.
• Let dinner run 2-3 hours. Ask for the check once, then wait, rushing it reads as rude.
• Cover shoulders and knees for churches. Bag in front on the metro; phone off the café table.

Don't

• Do the Colosseum or Vatican without a guide or audio, “you're looking at bricks.”
• Over-plan Rome, or return to a city you've “finished.”
• Sit at a piazza café without reading the menu, table + view is a premium; the bar is a third of the price.
• Go up the Arc de Triomphe (paid). Galeries Lafayette's roof is free and higher.
• Buy tickets from anyone on the street, or rent a car in a city centre.

Be ready for

• Clocks go back Sunday Oct 25 (EU + UK). You gain an hour, but sunset moves ~1 hr earlier by the clock, do outdoor and viewpoint things earlier from then on. London is dark by ~16:30. Phones auto-update; check watches and cameras.
• The first 36 hours in Barcelona will be rough. First evening: a walk and tapas, not a plan.
• French transport strikes, check the SNCF, RATP and airline apps 48 hrs out. Backup routes are on each travel day.
• Timed entry everywhere, Vatican, Colosseum, Sagrada, Louvre, Eiffel. No booking may mean no entry in October.

When to carry your passport

The plan is to leave passports in the apartment safe and carry a photo of the ID page plus a driver's licence day to day. You've already confirmed both passports are valid past 1 May 2027 (the six-month margin Schengen and the UK want) with blank pages to spare, so that's handled. On these days the real passport comes with you, it is checked against a booking or a border:

Passport days

• Mon 13 Oct, land in Barcelona (passport control on arrival).
• Wed 15 Oct, Sagrada Família, the ticket is nominative and ID-checked at the door and the tower.
• Fri 16 Oct, fly Barcelona to Rome.
• Sat 17 Oct, the Colosseum tour checks ID against both booking names.
• Mon 19 Oct, the Vatican guided visit is name-checked at the desk.
• Tue 20 Oct, the Borghese Gallery is strictly nominative, ID at the entrance.
• Wed 21 Oct, fly Rome to Paris.
• Mon 26 Oct, the Louis Vuitton hot-stamp, bring both passports and the covers.
• Tue 27 Oct, the Eurostar is a full border crossing at Gare du Nord.
• Fri 30 Oct, fly London to Los Angeles.

Booking order, and when tickets drop

The final 7-day check

Everything on the trip that can quietly change between now and then. Run this list the week before you fly.

Hours, schedules, conditions

• Búnkers del Carmel October access hours (they change with the season, and it's a daytime-only, fenced site now).
• Sagrada Família ticket inventory, it loads in batches, check daily from ~60 days out.
• Versailles Oct 25, confirm the Grandes Eaux Musicales (Musical Fountains) schedule and the early 17:30 garden closing.
• Eiffel Tower summit operating status (weather and maintenance close it) and the exact Oct 22 sunset time for the cruise.
• Paris Museum Pass price, and any change to the Louvre / Versailles entrance rules.
• Trevi Fountain paid-access hours, and re-book any restaurant that only holds tables 2-4 weeks out.
• Marriott Rive Gauche, check the four Nightly Upgrade Awards have cleared from pending to confirmed in the Bonvoy app, and call Marriott if they haven't.

Crowds, transit, the clock

• Paris, check the official attraction advisories for Toussaint school-holiday crowds, and the SNCF / RATP apps for strike or disruption notices.
• London, check attraction hours for half-term week, and confirm the Warner Bros. Studio Tour reservation (the most half-term-sensitive booking of the trip).
• Oct 25 clock change, verify every phone, watch and camera will roll back automatically, or plan to do it by hand.
• London 2FOR1, only if a train you're actually taking has a qualifying ticket, check daysoutguide against the attraction.
• ☐ UK ETA approved for both travellers (see Entry paperwork on the reservations page).
• ☐ ETIAS status re-checked (see Entry paperwork), still not required as of the last check.
• ☐ Power bank / spare-battery rules for whichever airline you're on that leg, confirm nothing changed.

The daily rhythm

Europe is an evening trip. The good hours are 21:00-24:00, music in the streets, everyone out. Build the day around protecting them.

How each day runs

• Sleep, aim for 8 hours in bed, never below 6. When you were out past midnight, sleep in; the cities don't wake up early anyway.
• Nap, up to 2 hours in the afternoon on the heavy days (Colosseum + Forum, Versailles, any 20,000-step day). It's on the schedule as an optional block; take it.
• Gym, optional 1-hour session in the morning. Each city page lists the nearest option (the Paris Marriott has its own; elsewhere a day pass or a park run). Do it before breakfast, or skip it guilt-free.
• Out late. Aperitivo ~19:00, dinner 21:00, then walk, each city page has an “Out late” list of where people gather, live music, and the free street shows.
• Pastries are a treat, not a habit, a pain au chocolat / maritozzo / custard doughnut every few days, not every morning.
• London breaks the pattern: it's an earlier city (pubs done by 23:00), so use the mornings there, and after Oct 26 it's dark by 16:30.

Getting around, and airport time

Walk vs. ride

• Julian's rule: a 20-minute walk and a 20-minute drive are the same trip in these centres, traffic and one-way streets eat the car's advantage. Walk unless it's raining or you've already seen the route.
• Every day's schedule shows the walk (and, where it matters, the drive) between stops with a rough time, so you know when to leave.
• City transit: Barcelona T-casual (10 rides), Rome single tickets or a Roma Pass, Paris Navigo Semaine on your phone (Mon-Sun; add a day pass for Mon Oct 26), London contactless (auto-caps ~£8.90/day). Buy on arrival.

Airports, you are “foreign passengers,” so add time

• Be at European airports 3 hours before an intercontinental flight, 2.5 hours before an intra-Europe one. US passports clear a separate, slower line, even on flights that feel domestic.
• You're checking one bag, so do online check-in the day before and still allow ~30-40 min at the European airports for the bag drop and the slower priority-boarding scrum. On the Eurostar (Oct 27) you wheel everything on yourself, no bag drop, plus add 20-30 min at Gare du Nord for the PABLO tax-free kiosks.
• Each travel day's page shows the full timeline: leave the apartment by HH:MM, at the airport by HH:MM, flight HH:MM, with the buffer already built in.
• Heathrow on the way home: 3 hrs early, bag drop (the checked bag goes here), then security, then the lounge. The UK has no tourist VAT refund, there is nothing to claim there.

Register before you go

A few minutes, done once

• Enrol both of you in STEP (the State Department's Smart Traveler Enrollment Program), free, and it puts the nearest US embassy or consulate in touch with you if something happens while you're there.
• Confirm an emergency contact at home who has your dates and your city-by-city addresses.
• Passport copies live in the shared Drive folder (Europe 2026 / Reservations & Vouchers), plus a printed copy kept separately from the real passport, plus one left with family at home.

Enrol at step.state.gov

Emergency

One tap, not a search, if something goes wrong.

The numbers

• Spain, Italy, France: 112. Police, fire, ambulance, works anywhere in the EU, English-speaking operators available.
• United Kingdom: 999 or 112. Same coverage.
• Card lost or stolen: use your bank's app to freeze it instantly, or call the number on the back of the other card in the pair (see “Split the backup up” above).
• Lost passport: file a police report first (you'll need it to replace the passport), then contact the nearest US embassy or consulate, most issue an emergency passport same day or next.
• Tonight's address and host contact are on that day's page here. Passport copies are in the shared Drive folder.

US embassies and consulates on this route

• Spain · Embassy, Madrid
• Italy · Embassy, Rome
• France · Embassy, Paris
• United Kingdom · Embassy, London

If it goes wrong

The five

• Delayed flight, every intra-Europe leg is a morning flight with the day as buffer; transatlantic legs run twice daily.
• Missed the nonstop home, Oct 31 is slack before the evening wedding; the same flight runs again plus 3 more LHR-LAX nonstops.
• Attraction sold out / rain, every day names a close, open backup.
• Pickpocketed, a backup card in the apartment safe; know your bank's freeze number; file a police report (needed to replace a passport); the nearest US embassy or consulate handles a lost passport, usually same or next day.
• Illness, EU pharmacies handle minor things directly and well.

Small things that make a big difference

The quick-reference version. Everything here lives in full further up this page, this is just so it’s easy to find again.

The recap

• On the long-haul flights: compression socks on, move every hour or two, sleep toward Barcelona time on the way out.
• In the daypack: a blister plaster the moment it pinches, a spare pair of socks.
• With money: keep the two backup cards apart, one per person.
• With electronics: the power bank stays in the cabin, always.
• At the borders: UK ETA done for both of you; ETIAS reconfirmed, still not required as of the last check.
• In an emergency: 112 in Spain, Italy and France; 999 or 112 in the UK.