This is one of my favorite at home workouts. If you push yourself, this quick one will leave you gasping for breath. Go all out here. Make sure to warmup effectively beforehand so your first rep is at a sprint pace.
It's only three exercises:
Do 20 reps of each, then 15 each, 10, 5
Rest half as long as it took you to complete the whole thing.
Then repeat it.
Try to hit the same time on your second round through.
For the super advanced, do 3 rounds. But, hustle! Your goal is to hit the same time each round.