Wearing as much wool as possible helps, as it seems to wick away sweat before it starts to smell. Then when I'm done exerting myself, it smells less than anything else after saturating it with sweat, and I mean it beats both cotton and synthetics.

Not all of us can wear wool as the bottom layer, at least not all the time. Often, I'm OK with being sweaty. I sit still and have ice water and cool down, and my clothes eventually get dry. If it's a lost cause, I change into the spare set of clothes I keep at work. I don't have to do it often, which means I don't have to carry clothes there or back often. The spare set goes a long time without use. And by the way, the spare set is complete: jacket, shirt, pants, underwear, socks and shoes. You never know.