Look Around for Entertainment
Many airports around the world offer some forms of entertainment or attractions for free. Art exhibitions, play areas for kids, and musical performances.
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Do your homework and try to find out what kind of freebies your airport has to offer. You might have some walking to do from one attraction to another, but you have some time to burn until your plane leaves anyway.
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Slippers Are Your Friends
The temperature inside an airplane needs doesn't have much wiggle room. There is a lot of physics to it, and we don't know enough about physics to argue with it.
Getty Images Photo by Yevgen Romanenko
Oftentimes, it means that you'll either be too hot or too cold, or just plain uncomfortable. To that end, a pair of your favorite slippers in your carry-on will help you regulate your body temperature and keep you cozy.