It's cool and overcast today so I decided to just wear a short sleeve work shirt rather than a jersey for my commute (why needlessly add to the laundry). As I arrived, I realized I have an appointment in the middle of the day that I need to ride to that's about 5 miles away.

Temps on the return trip are forecast to be in the 80's and my office is on a substantial hill. The question is should I stink up my shirt in the afternoon or ride shirtless?

We have a washroom, I keep deodorant in the office (I usually have a spare shirt as well, but I forgot to replace it last time), and I have no appointments scheduled. I'll be on my 'bent if it matters.