[ TIPS · THE DISPATCH ]

The One Packing Cube Setup That Survived 47 Flights Without a Checked Bag

After 47 flights and three weeks at a time, I cracked the packing cube system that fits everything into one carry-on. Here's the exact setup.

I used to be a checked-bag person. I had a whole system: a 28-inch spinner, a color-coded luggage tag, even a printed packing list I was unreasonably proud of. Then I missed a connection in Frankfurt because my bag didn’t make the transfer, spent two days in jeans I’d worn on the plane, and never checked a bag again.

That was flight number six of what’s now forty-seven. Here’s the setup that made it possible.

Everyone blames their suitcase. Or the airline size limits. But the actual problem is almost always one of two things: they’re not using packing cubes, or they’re using them wrong.

Wrong looks like this — one giant cube stuffed with everything, bloating the bag into a sausage shape that won’t fit overhead. Right looks like modular zones: clothes in one place, toiletries in another, cables in a third. When you land in Lisbon at midnight and need your toiletry bag without touching anything else, you’ll understand why this matters.

The other failure mode is buying cubes before knowing your wardrobe. I did this. Bought a beautiful large compression cube, then realized my folded shirts still needed a medium. The cube sat in a drawer for a year. Start with a 3-piece set from a brand like Peak Design, Osprey, or Eagle Creek — sizes S, M, and L — then figure out what actually fills what.

My carry-on is a 40L Osprey Farpoint, which fits in every overhead I’ve encountered except one regional turboprop in Costa Rica where they gate-checked everyone anyway. Here’s how I fill it:

Cube 1 — Medium compression cube (clothing tops): Five merino wool t-shirts, two long-sleeve base layers. Merino is the cheat code for carry-on travel. It doesn’t smell after a full day of walking, dries overnight in any bathroom, and looks presentable in a restaurant. I use Uniqlo merino for the budget version (around $30 each) and Icebreaker 150 when I want something that’ll last five years. Dark colors — navy, charcoal, deep burgundy — hide sweat, coffee, and the occasional tomato sauce disaster.

Cube 2 — Small compression cube (clothing bottoms): Two pairs of Outlier Slim Dungarees or the Bluffworks Ascender chinos if I’m on a tighter budget. One pair of lightweight joggers that doubles as sleep pants. That’s it. Three bottoms for three weeks sounds insane until you realize hotel sinks work fine and most Airbnbs have a washing machine.

Cube 3 — Slim flat cube (toiletries + pharmacy): I use the Peak Design Small Packing Cube in its flat, non-compressed form for this. TSA-approved toiletry bag inside, plus a small ziploc with ibuprofen, melatonin, a few bandaids, and Pepto tablets. The flat profile means it slides against the back of the bag without eating into clothing space.

Cube 4 — Tech cube (cables, adapters, power): A slim medium cube holds my GaN charger (Anker Nano II 65W, charges laptop and phone from one plug), a 2m USB-C cable, a universal travel adapter I picked up in Tokyo for about $18, AirPods, and a small backup battery. Everything cables-related lives here. When I need to charge at a coffee shop in Bogotá or a hostel lounge in Porto, I pull out one cube and have everything.

The remaining space — maybe 8-10 liters — holds my laptop sleeve, a packable rain jacket (Patagonia Houdini, stuffed into its own pocket), and one pair of backup shoes I stuff socks into. Shoes are always the wild card. I wear the heaviest pair on the plane.

Here’s what most packing cube guides won’t tell you: the cubes are just containers. The actual system is the wardrobe itself.

My rule for any trip over a week is the 9-item wardrobe: 5 tops, 3 bottoms, 1 dress layer (blazer, light merino cardigan, or packable fleece depending on destination). Every combination works together. Nothing is precious. I can wash anything in a sink and have it dry before morning.

For three weeks specifically, I do one laundromat stop mid-trip — usually around day 10. Cities like Berlin, Mexico City, and Medellín all have self-service laundromats for $4-6 a load, and you can walk around the neighborhood while your clothes spin. If you’re traveling slowly through fewer cities, this fits naturally into a rest day. If you’re bouncing fast, it’s also worth reading about how slow travel actually saves money versus cheap flights — sometimes the economics of staying longer mean you never need to rush-pack at all.

• Backup shoes: I bring exactly one pair beyond what I’m wearing. Two pairs of shoes in a carry-on is the single biggest space crime. One pair of clean walking shoes (I use Allbirds Tree Runners) that can pass for smart-casual.
• More than two books: I had to learn this the hard way. Kindle exists. I still carry one physical book for the first few days, but I’ve stopped pretending I’ll read three.
• A “just in case” outfit: This is where suitcases go to die. I spent $22 on a merino button-down at a secondhand shop in Cartagena once when I needed something slightly dressier. It was a better shirt than what I’d have packed.
• Full-size anything: TSA 3-1-1 limits forced me into travel sizes and I never went back. Solid shampoo bars (Ethique or Lush) eliminate the liquids problem almost entirely.

People with a 30L backpack and a duffel “personal item” that’s clearly also a suitcase. That works until it doesn’t — budget carriers in Europe and Southeast Asia are increasingly strict, and getting gate-checked on a Ryan Air flight costs more than just checking a bag would have.

The other one: over-packing the wrong category. Toiletries, specifically. Full-size conditioner, two body washes, a dry shampoo canister. I once watched someone at check-in in Istanbul forfeit an entire toiletry bag worth probably $60 because it wouldn’t fit in the overhead with their other bag. Everything went in a trash bin.

If you’re doing a multi-city trip — say, three weeks bouncing between Cartagena and Bogotá — the carry-on system also plays into neighborhood strategy. When you’re moving fast, knowing whether to stay in the Walled City or Getsemaní matters for logistics as much as vibe. I wrote a full breakdown of which Cartagena neighborhood actually fits your travel style that’s worth a read before you book.

Delta, JFK to Amsterdam, 2023. The overhead bins were full by Group 4. My bag got gate-checked. I didn’t lose anything — it came out at the jetway in Amsterdam — but it taught me one thing: always put your cubes in the order you’ll need them. Toiletry cube on top. If your bag does get gate-checked and you need your overnight stuff in the airport, you want to grab one cube, not excavate the whole thing.

For destination-specific packing lists and trip frameworks, the full itineraries section is where I keep the city-by-city breakdowns — each one includes a rough packing note for that region’s climate.

And if you’re ever considering a slower approach — staying in Florence for four days instead of trying to hit five Italian cities — the Florence slow art week itinerary is a good example of how carry-on travel pairs beautifully with not-rushing. Less moving means fewer repacks. Fewer repacks means the system stays intact.

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The setup is four cubes, nine clothing items, and the conviction that you definately don’t need as much as you think you do.

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