Burpee Challenge
Everyone hates Burpees. Which is exactly why you should do them. One of the best all body exercises around.

Burpees 1, Squats 9
Burpees 2, Squats 8
Burpees 3, Squats 7
Burpees 4, Squats 6
Burpees 5, Squats 5
Burpees 6, Squats 4
Burpees 7, Squats 3
Burpees 8, Squats 2
Burpees 9, Squats 1
Rest 1 minute, repeat in opposite direction.