One Bag Europe Travel

Complete system for traveling Europe with a single carry-on backpack - from bag selection and clothing strategy to laundry cadence, airline compliance, and arrival protocol.

travel, productivity

by Morris

Bag Selection & Fit

Choosing the right bag is the most important decision. Everything else fits around it.

• Choose a bag ≤40L - or ≤20L if flying Ryanair/Wizz Air as personal item only
• Confirm your bag fits the carry-on dimensions of every airline on your trip
• Pack the bag to full weight, then walk 30 minutes to test comfort and balance
• Confirm the bag has a clamshell or panel-load opening for airport security trays
• Add a packable daypack inside the main bag for city days
• Verify the bag has a separate laptop sleeve or padded panel for a 15" device
• Buy a small luggage scale - weigh the packed bag before every flight

Documents & Admin

Admin that cannot be undone mid-trip. Handle it at least 3 weeks before departure.

• Check your passport expires at least 6 months after your return date
• Research visa requirements for every country on your itinerary
• Check if ETIAS authorization is required for your nationality
• Buy travel insurance covering medical evacuation, trip cancellation, and theft
• Get a European Health Insurance Card (EHIC/GHIC) if you're an EU/UK citizen
• Notify all your banks and credit cards of your travel dates and countries
• Scan and store digital copies of passport, insurance policy, bookings, and emergency contacts
• Write down the EU emergency number (112) and your insurance hotline on paper
• Register with your country's embassy for trips over 2 weeks

Clothing System

The one-bag rule: everything must mix, match, and dry overnight. Quality beats quantity.

• Lay out every item you plan to pack and apply the '1 outfit per 3 days' test
• Pack 3 bottoms maximum: 1 versatile trousers/jeans, 1 shorts, 1 smart-casual option
• Pack 5–7 tops in quick-dry or merino wool fabric
• Choose 1 pair of shoes that handles 15+ km of walking AND a restaurant
• Add 1 pair of lightweight sandals or compact slip-ons as a second shoe option
• Pack a lightweight packable rain jacket that compresses to fist size
• Pack 1 smart layer: a structured shirt, blazer, or fine-knit for evenings out
• Pack 5–7 pairs of underwear in merino or quick-dry synthetic
• Plan your travel-day outfit: wear your heaviest, bulkiest items on every travel day
• Do a final 'leave it' pass: remove anything you haven't needed in the past 2 weeks at home

Toiletries & Health

Full-size is the enemy. Go solid where possible. Buy what you forget locally.

• Decant all liquids into containers ≤100 ml and verify everything fits in one 1-litre clear bag
• Switch to solid alternatives: shampoo bar, solid conditioner, solid deodorant
• Pack 7–10 days of any prescription medication - refill at European pharmacies using generic names
• Build a minimal first aid kit: blister plasters, ibuprofen, antihistamine, antidiarrheal, rehydration sachet
• Pack a compact microfiber travel towel (many hostels charge €2–3 for towel hire)
• Include SPF 30+ sunscreen in solid stick or mini tube format
• Pack a small laundry soap bar or 3–4 sink-wash sachets (Scrubba Wash Bag sachets, or Woolite strips)
• Pack foam earplugs and a sleep mask for hostels and overnight trains

Electronics & Power

Every device competes for weight and cable space. Bring only what you'll use daily.

• Pack one universal travel adapter with built-in USB-A and USB-C ports
• Verify all your devices support 100–240V input before departure
• Pack a power bank ≤100 Wh and put it in carry-on - never checked luggage
• Consolidate to 2–3 cables maximum using multi-tip or right-angle short cables
• Pack all cables and small electronics in a single zippered pouch
• Bring noise-canceling earbuds or headphones for trains, planes, and hostel common rooms
• Decide whether you need a laptop - consider if a phone or tablet covers your real needs
• Photograph your full electronics kit before packing for potential insurance claims

Laundry Strategy

One-bag travel only works if you plan laundry. This section is what makes 7 tops last 3 weeks.

• Plan one laundry day every 4–5 days based on your clothing count
• Identify a laundromat near each city stay using Google Maps ('laundromat', 'lavandería', 'laverie')
• Pack a flat universal sink stopper for sink washing in hotel bathrooms
• Pack a 2–3 m travel clothesline with suction cup or hook attachments
• Sink-wash underwear and merino tops the night before they run out
• Check if your accommodation has coin laundry or laundry service - often cheaper than a laundromat
• Never leave laundry in a shared machine unattended - set a phone timer for pickup

Money & Security

Financial redundancy and theft awareness. Tourist areas in Europe have professional pickpockets.

• Get a no-foreign-transaction-fee card before departure (Wise, Revolut, Starling, Charles Schwab)
• Carry 2 cards from 2 different banks in case one is blocked or fails
• Arrive in each country with €50–100 local cash for markets, small cafes, and transit
• Hide a €50 emergency note in a part of your bag separate from your wallet
• Know your card PIN - many European machines require chip+PIN with no contactless fallback
• Enable real-time transaction notifications on your banking app
• Use a small crossbody bag or neck pouch for passport and cards in crowded tourist areas
• Never hang your bag on the back of a cafe chair in tourist areas
• Bring your own combination padlock for hostel lockers

Digital Prep

Offline-first setup. Assume you'll lose connectivity at the worst possible moment.

• Download offline maps for every country on your itinerary (Google Maps or Maps.me)
• Get a local SIM or international eSIM before departing (Airalo, Holafly, Nomad)
• Test your eSIM activates correctly on home WiFi before leaving
• Download Google Translate with offline language packs for every country you're visiting
• Install Citymapper for city transit in London, Paris, Amsterdam, Berlin, and Rome
• Save all booking confirmations (accommodation, transport) as offline PDFs
• Download entertainment for long train rides: podcasts, Netflix (offline), Spotify (offline)
• Set up a shared notes doc accessible offline (Notion offline, Google Docs offline mode) with your itinerary
• Install a VPN for using public WiFi in cafes and hostels

Carry-On Compliance

The rules that catch people off guard at the gate. Budget airlines enforce these aggressively.

• Look up the exact carry-on dimensions for every airline you're flying on this trip
• Weigh your fully packed bag - aim for under 7 kg to stay within most soft limits
• Confirm your power bank is in carry-on and clearly accessible if asked
• Put your liquids bag in an outer pocket - accessible in seconds at security
• Move all metal items (watch, belt, coins) to a pouch the night before flying
• Wear your heaviest items (boots, jacket) through airport security to keep bag weight down
• Remove any prohibited items: knives, scissors over 6 cm, liquids over 100 ml
• If your bag is borderline on size, use a soft-sided bag you can compress slightly to fit the sizer

Packing Day

Pack 48 hours before departure - not the night before. One final ruthless edit.

• Pack 48 hours before departure to leave time for forgotten items
• Lay every item out and do one final 'can I leave this?' pass
• Use packing cubes to compress clothing and separate electronics from clothes
• Put laptop and power bank in an exterior quick-access pocket for security
• Weigh the packed bag on your luggage scale before leaving the house
• Do a final walk-through of every room: chargers, medications, passport, glasses
• Put on your travel outfit the morning of departure - wear the heaviest items, don't pack them

Arrival Protocol

The first 2 hours in a new city. A repeatable ritual that makes every arrival smoother.

• Screenshot or download your accommodation address and check-in instructions before landing
• Activate your SIM or eSIM as soon as you have signal or airport WiFi
• Use public transport from the airport - research the route before landing
• Locate the nearest pharmacy, grocery store, and ATM to your accommodation on day 1
• Stow your main backpack at the accommodation and switch to your daypack for exploring
• Do a quick gear check after transit: anything broken, wet, lost, or missing?
• Set up a consistent 'home base' routine: chargers plugged in, documents in one spot, bag in one corner
• Drink water and rest before making plans - arrival fatigue is real and leads to bad decisions