This was something I first tried on a female co-worker's recommendation, after our department had to pull an all-nighter at the office.
I use pre-moistened travel feminine hygiene wipes while changing clothes, when I get to work. Then I give my "bidness" a little dose of talc and cornstarch, baby powder. The first time I made this purchase at the store, my wife thought I was trying to send her a message about her "freshness."

I don't use them after every commute, but during the hottest months, this combination has certainly helped me feel cleaner.
I don't know if the feminine hygiene wipes are any different or more effective than other pre-moistened personal wipes, but the individually-wrapped, travel-packs are quite convenient.