This is the perfect workout for those of us who had no time and no motivation to hit the gym. This 20 minute workout is perfect for getting that important cardio in when you have no time for yourself! No equipment or gym required! Do as many reps of each exercise as you can in one minute, moving from one to the next without stopping. Rest 90 seconds, then repeat the circuit a total of three or four times. 1. Jumping Jacks 2. Squat Jumps 3. Side-to-Side Hops: Keeping your knees slightly bent and feet together, imagine you're jumping back and forth over a line on the floor. 4. Burpees: Squat to place your hands on the ground, jump back into a plank position, and do a pushup. Reverse the move to return to standing, jumping off the ground to finish each rep.