"The 25-10-15" is one of the workouts I do at home. It's 25 jumping jacks, 10 jumping squats, and 15 seconds of knee highs repeated 4x. It equals out to be 100 jumping jacks, 40 squats, and 60 seconds of knee highs. It's a warm up I try to do about 4-5 times a week on top of weights and other things. It's a great way to get my heart rate up and kick start my metabolism.