Top Carry-on Packing Mistakes to Avoid, According to a Frequent Flier

One traveler shares the solutions that helped her become a carry-on-only expert after visiting over 70 countries.

Published on Feb. 22, 2026

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After visiting more than 70 countries and learning to live out of a carry-on for weeks at a time, one frequent flier shares the most common carry-on packing mistakes she's made along with the products that solved them. From overpacking "just in case" items to forgetting essentials like power adapters and umbrellas, she's found the right gear makes all the difference for becoming a successful carry-on-only traveler.

Why it matters

Packing the right items and avoiding common mistakes can make a big difference in the travel experience, from reducing stress and hassle to saving money. As more people return to frequent travel, these tips from an experienced globetrotter can help others optimize their carry-on packing and become more efficient, organized, and comfortable travelers.

The details

The author has made every packing mistake imaginable, from cramming too many "just in case" outfits into her suitcase to forgetting essential items like charger adapters. Over the years, she's learned that the right gear is key to becoming a successful carry-on-only traveler. Her top tips include using compression packing cubes to maximize suitcase space, investing in versatile travel shoes, and packing a powerful portable charger. She also recommends an organized toiletry bag and a compact, durable umbrella to be prepared for unpredictable weather. Starting the packing process early and using a modular packing system also helps avoid the pitfalls of last-minute rushing and overpacking.

  • The author has visited over 70 countries and learned to travel with just a carry-on over the years.

The players

Claire Gallam

A frequent flier who has visited over 70 countries and learned to master the art of carry-on-only travel.

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What they’re saying

“I've absolutely been the person who throws in an extra pair of heels or three 'backup' outfits that never see daylight. Overpacking doesn't just weigh me down; it makes finding what I actually need so much harder.”

— Claire Gallam (Travel + Leisure)

The takeaway

By avoiding common carry-on packing mistakes and investing in the right travel gear, even chronic overpackers can become efficient, organized, and comfortable carry-on-only travelers, saving time, money, and hassle on the road.