(Another pinner said: This website is AMAZING. It is my workout bible, and best of all, its completely FREE. Tons of workout vids and plenty more to stave off ruts. Most of the routines are between 12-20 mins long and that's all you need.)
No time to workout? this woman has amazing work outs that usually take around 15-20 minutes and work you very hard! pinner says "She puts videos on her site for beginner, intermediate, and advanced levels. NO EXCUSES!