I'm not wearing any underwear

[Gooch]

Take a shower after working out, sporto.

Or you could use unscented wipes to clean your pits and whatnot.

the unscented wipes can be very helpful when you don't have time to shower at the gym.

You are about 6 months away from washing yourself with a rag on a stick

I think if I Krazy Glued a Loofa, it would do the job that much better.