I wash undies after wearing them for a day. Though sometimes don't wear undies at all tbh
Much more comfortable. But then, I have to wash jeans and such every day else it would be a bit grim. When I have worn underwear, I was jeans maybe every 3/4 days depending how dirty they are to look at. So not wearing underwear at times actually increases my washing!
Socks, everyday. But again, often don't wear them
