The Strategist’s writers share their guides to packing in a carry-on, including capacious carry-ons, tiny toiletries, and tips from frequent fliers on making it all fit in an overhead compartment.

Gift Wrapping: "We know that passengers will be traveling with gifts, and that's okay," Murgia said. Wheeler suggested skipping the wrapping paper for gifts in carry-on bags.

Packing for long trips abroad induces anxiety for the author, a ritual honed over decades. Despite the increased availability ...