It's that simple.

Back to HIIT today!  Warm-up for a few minutes and then get to it - go thru the circuit just once!  You have a 100 reps of each exercise - you cannot move onto the next exercise until you've finished all 100 reps!  Time yourself - you might see this one again.

700 Rep Challenge
100 Jump Rope Skips or High Knees
100 Jump Lunges or Backward Stepping Lunges
100 Pushups - yeah, 100...start on your toes and drop to your knees if you have to....take as many breaks as you need!
100 Bicycle Crunches
100 Squat Jumps
100 Forearm Side Plank Drops (50 each side)
100 Mountain Climbers

TRAIN WITH INTENTION!