Have a pretty good gym at work (four treadmills, a few bikes, two Concept2s, free weights, a squat rack, and various machines).
When I am in the office (maybe every other day) I try to schedule an hour in the afternoon to work out (I find it gives me a great boost for later afternoon evening). As I do a lot of interval training I obviously have a shower after (tend to be soaked).
When traveling I have my assistant find the hotel with the best 24-hr gym and work out in the evening