I mean, it depends on how much you're exerting yourself and how much you want to use perfumes and antimicrobials to mask or subdue any odor.

I used to do strenuous work indoors, so I'd change my exterior shirt and pants every 1-2 days, while changing my underwear every day. Now I do more sedentary work mixed outdoors and indoors, and I find that I can stretch the same exterior shirt and pants for a few days straight.

It sounds a bit grody, but what am I supposed to do? Mortgage and condo fees are already expensive, let alone laundry. And my time is at a premium. I'll be damned if I'm going to waste a lot of my personal time in the morning or evening doing laundry because my employer only provides me 2 uniforms, if I can stretch things slightly so that I only do laundry on the weekend....