What I would add: In the tropics, wear things that will dry quickly ~ light cotton and such. Otherwise it can be days before your underwear and other things are dry. A bandana can be a washcloth, towel, sweat wipe, headband, plate. For women: You can make one product do multiple things. For example, Dr. Bronners (or any available soap) for washing, shampooing, washing clothes; lip balm can also be hair goo and hand moisturizer; a simple skirt, below the knee, can be so comfy to explore in, get you into temples, and looks nice in a restaurant.