Yes I said while you drive. It sounds funny but bare with me. It really does work and you feel the burn. While you are driving to work or whatever turn on the radio to a fast fun song and (don't laugh) squeeze your butt cheeks to the beat. You do this for the whole song and you will feel the burn. You can even repeat it after resting for a song or so. It sound funny but it works.
I do it alot. LOL