I've been trying but I really couldn't think of any witty things to say...
So in boring ol' prose:
Old sweat stinks. I commute by bike, don't have that many sets of bike clothes and don't run my washing machine until it's full, so I usually wear my bike gear several times before each washing. That's fine out on the open road especially when it's cold out, but I have found myself in a hot grocery store on Friday afternoon noticing an embarrassingly pungent smell rising from the jersey that I've sweated heavily into... ouch...5 times or so. 
Fresh sweat is great. Being drenched in it is even better. I like the "yeah I've just worked my a§§ off and frankly I don't give a hoot if I look like a raving lunatic"-mindset it puts me into
Winter riding is much less about badassery and much more about bundle-uppery. - malkin
1995 Kona Cinder Cone commuterFrankenbike/Selle Italia SLR Lady Gel Flow
2008 white Nakamura Summit Custom mtb/Terry Falcon X
2000 Schwinn Fastback Comp road bike/Specialized Jett