Checking baggage costs money, wastes time, and creates anxiety. After 200+ flights, here is the exact system I use to pack everything I need for any trip — from a weekend to three months — into a single carry-on bag.
The Ultimate Travel Packing Guide: How to Pack Everything in a Carry-On
The two worst hours of any international trip: waiting at baggage claim, and rewriting the same four carry-on items from the security tray back into the bag while the person behind you sighs. After 200 flights, I have eliminated both.
The Philosophy: Wear More, Pack Less
The paradigm shift that makes carry-on only work is this: you are not packing a wardrobe, you are packing a capsule system where everything goes with everything else, and you wash clothes every 3-4 days.
This sounds like a sacrifice. It is not. Traveling light is objectively better: no checked bag fees (€30-60 each way), faster airport exit (skip baggage claim entirely), freedom to take any airline on any route, and never losing a bag.
The Bag
Osprey Farpoint 40L ($190) or Peak Design Travel Backpack 45L ($299) are the two best carry-on backpacks. Both meet the size requirements for most airlines, including budget carriers. The Osprey converts to a panel-loader (like a suitcase) for business trips; the Peak Design has extraordinary organization.
One under-seat personal item in addition: Peak Design Field Pouch or a simple daypack.
The Packing List (3 Weeks, Any Climate)
Tops (5 items):
Bottoms (3 items):
Footwear (2-3 pairs):
Underwear and Socks (4 sets):
Merino wool. Ex Officio makes excellent travel underwear. Darn Tough socks. Four pairs for a three-week trip — wash every 3-4 days.
Toiletries:
Electronics:
Documents:
Packing Strategy
Roll everything. T-shirts and soft items go in packing cubes (Eagle Creek are the standard). The cubes compress and organize simultaneously.
Heavy items (laptop, shoes) go against your back when wearing the backpack.
The 100mL liquid bag goes in the top of the main compartment, accessible in 10 seconds at security.
Layer the packing cubes flat in the main compartment: cubes on the bottom, fleece/jacket on top.
Climate Adaptation
Cold climate: Add one merino base layer and a packable down jacket (Uniqlo Ultra Light Down folds to the size of a paperback). Remove the shorts.
Beach trip: The Bluffworks chinos double as swim shorts in a pinch. Add one extra T-shirt, remove the fleece.
Business travel: One good blazer (worn on the plane, not packed), one wrinkle-resistant button-down, the Bluffworks chinos. Done.
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The Laundry System
Every 3-4 days, wash your merino wool items in a hotel sink with a Scrubba wash bag (€40 — the best travel product I own after a passport). Hang dry overnight. Merino dries in 4-6 hours in a warm room.
For non-merino cotton items, use hotel laundry (expensive) or find a self-service laundromat — they exist in every city and cost €4-8 for a full wash and dry.
What to Never Pack
The first trip you take carry-on only, you will spend 20 minutes at the destination's baggage carousel watching other people wait. You will walk directly to the taxi rank. You will never check a bag again.
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