I never wear deodorant, and that's not a problem in the winter months. But lately it's been so hot and humid that I turn into a sweaty, sticky mess even while lounging around my apartment. You can tell just how hot it is out based on how huge my pit stains are. This thin white cotton t-shirt is totally saturated under my armpits. All my sweat soaks through, turning the shirt transparent as it sticks to my unshaven armpits.