Here is one of my favorite workouts @ Real World Strength Coach Headquarters in philadelphia BEAT the Clock! Here Margo does a circuit of 10 burpees, 15 jump squats, 20 jumping jacks, 25 med ball slams, and 30 kettle bell swings 15 left 15 right. After she gets done the circuit i break the news to here that she has 2 minutes rest then i want her to beat her first time...BEAT THE CLOCK, enjoy!!!!