Celebirty trainer Valerie Waters helped Jennifer Garner get her Alias body back after Baby, and countless other women have followed suit using her simple-but-super-effective ValSlides. These small discs that fit under your hands or feet make basic moves like lunges and pushups a whole new (and much harder!) workout. Follow her for tips on how to do the moves, free workouts, and much more!
Why you'll love her: "Check out my Bootylicious #Workout playlist for butt-firming moves to lift & sculpt your tush! http://bit.ly/Yr1PqN..."