Here is a football-inspired crossfit style workout that can be performed on a bare floor with proper footwear.

• Ball Squats - 50
• Push Ups - 30
• Football Run - run in a spot double time counting to 30
• Tire Run - imagine 8 tires lying on the floor in front of you in pairs, run through them lifting your knees and taking wide hopping steps - 15 times

Perform the entire sequence 3 times as fast as possible, timing yourself with a digital clock stopwatch or any other type of time keeper.  Record your time, try to beat it next time.