That's to much work, I wash them everytime I wear them. Jeans get dirty doing the outdoor stuff I enjoy.
depends how often you wear them .. ill wear a pair maybe twice a month .. you dont need to watch them everytime you wear them if you only wear them a few times a month .. its ruins the wash soo badly! unless you are doing alot of phisical activity ... which would mean alot of sweat ... you dont need to watch them as much as you think
i'll wear jeans like two or three times...depends how sweaty I get in them. Everything else is one wear and wash. *I have a phobia of smells* Don't wanna be the stinky guy.
Usually one wear, one wash. I only wear them more than once if i have just worn them for an hour or so. I.e. run to the store or something and change back to gym shorts at home.