Bring it!

If you're looking for an exercise program you can do at home that doesn't involve you causing an RSI as you manically hula-hoop in your front lounge then I highly recommend P90X.

Yes, it hurts. Yes, it will make you sweat. But stick with it and the results speak for themselves. (And, no, I don't have any shares in the company ;) )

Bruno Mars even gives it a little mention in "The Lazy Song"...

Bring it!