“In my luggage I always pack an empty 30 gallon trash bag, for my dirty clothes. I tend to sweat a lot in hotter climates, and having my dirty clothes in a trash bag (which is often lined with an odor eliminator) and separate from my clean clothes keeps my suitcase from becoming smelly. And it makes unpacking at the end of the trip dirt-simple: the trash bag full of clothes goes into the laundry.”