What I do is bike to and from the train station on the way in, saves me a 15 min walk on either end and no sweat at all biking at easy pace for a few mins especially when its so cool in the morning. On the way back I will bike the whole way for the fitness benefit and shower when I get home as usual after work. Once you are in shape though, which happens surprisingly quickly with regular riding, you won't really sweat from ~30 mins easy pace rides.

If you don't have a train or bus along the way, ebikes can also save you sweat. You don't even need to pedal at all.