This is somewhat of a regrettable confession, but I wore the same pair of jeans to work every day for TWO YEARS without ever washing them. It gradually became a social experiment.
No one ever said anything. The jeans never reeked of ass or piss, and indeed I also heard talk of lil's quoted text that claims bacterial saturation occurs within two weeks of continual wear. I don't know about you, but if I washed my jeans every two weeks, the style/wash of them would have been long gone many months ago.
I feel pretty unhygienic at times, but I look like I just bought a pair of new jeans.
P.S. If you try to sniff my ass at a Hubski meetup, I'll morph into a dog and do the same to you.