Work your legs, hips and glutes with these lower body and cardio exercises. A 30 minute workout, perfect for burning a ton of calories in a short period of time. http://www.spotebi.com/workout-routines/no-equipment-lower-body-and-cardio-exercises/
eaten-away: More jumpin jacks fo me I keep seeing this, and the math makes no sense. If every two jumping jacks burn 1 calorie, than 1000 jumping jacks would burn 500 calories. Not 3500. Not a pound of weight. However, jumping jacks are still awesome. Easy to do and get your heart rate up quickly. I do 100-300 a day, spread throughout the day.