30 Minute Elliptical Workout- better than mindlessly watching the time creep by
40 Minute Walking Mixed Interval Treadmill Workout
"10 minute" workout (I can guarantee it'll take me longer, but it is very effective!)
10-minute butt workout from Kelly Rippa's trainer. It's a killer and oh so effective!
Simple, effective 20 minute morning workout ideas from leading fitness trainers