Stair Climber
The key to looking like Karlie Kloss, while still winning over your boss, is to take it one step at a time. Seriously - we all know you're not successful enough to work anywhere other than the second floor, so take the stairs. Not to mention, taking the stairs is the easiest way to fire up those quads and simultaneously pretend to care about the environment.
[Photo via @deskercise]