The truth is, we have this idea that late night is about creativity and being cool, but that's not our job. Our job is to get as many people watching the commercials in between our show. That's the reality of it.
I try to work out with my personal trainer for an hour, four times a week - we mainly concentrate on weights and running. If I'm on the road I sometimes do DVD work-outs in my hotel room - P90X and Insanity are a couple of my favourites.
I am a writer. I could not afford to take 15 months off from my writing career to play detective.