In the time it takes to watch your favorite sit-com, you could get fit... and actually, why not do both at the same time? Cue the last episode of Big Bang Theory, roll out your exercise mat, and let's check out a few of these 30-minute workouts.
2 Nope, It's Not a Typo...
I know, I know... this one's only 3 minutes, but I thought I'd include it anyway...