If you're staying in a hotel, call in advance to see if laundry services are available and how much they cost. Travelers staying in properties without laundry facilities or taking cruises—cruise lines are notorious for charging an arm and a pant leg for laundry services—can wash clothes in sinks and hang them to dry. I always make sure to pack a travel-size packet of laundry detergent and a sink stopper to clean my clothes on the road—it's my secret for fitting everything in a carry-on bag. Portable laundry-drying lines that attach to showers via suction cups are also a good choice; you can find them at many travel-supply stores.

It’s a far cry from doctors’ typical jet lag tips ― like avoiding caffeine and alcohol before you try to sleep, slowly adjusting your sleep schedule to a new time zone or even using small doses of melatonin to help fall asleep when your body typically wouldn’t want to, the study’s author Cristina Ruscitto, a researcher in the Department of Psychology at the University of Surrey (and former long-haul air crew member), told The Huffington Post. The idea is, she said, “that you readjust by eating in line with local time ― not just sleeping on local time.” This revelation could be an easy fix for jet lagged travelers everywhere. 

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