I'm going to try this workout tomorrow morning

Just 2 x 20 pound kettlebells and 5 minutes of effort.  I guarantee this will just about kill yer arse if you put your heart & soul into it.  Believe me, it's a lot harder than it looks.

We have just 5 exercises here, each performed for just 60 seconds.  The clock gone bad beeps indicating when you are to switch exercises.  As always, you don't count reps, you go for time.  It's about time, not reps.

1. Double kettlebell swings
2. Double front squats
3. Double presses
4. Alternate front-leaning rows {I bet you can't do this}
5. Double snatches