I've been using these videos (
http://www.treadmoves.com) to keep my clients exercising at home. I've been having GREAT luck with them - my clients love them and they are getting the results they want. (And I've looked like the hero giving them a fun way to workout without me!)
Was wondering if any of you have had luck incorporating any other kind of video for treadmill users? I'm looking to expand their collection...