If you’ve ever found yourself unpacking half your kit in a hurry—to find your rain cover during a squall, mosquito repellent in early evening, first aid kit after a nasty fall—then you understand why ...

This article is a part of CNN Underscored’s Summer Travel Week, a weeklong focus on how to travel smarter and save money during one of the busiest travel seasons of the year. Luckily, many airlines ...