The "Murph"

Workouts come in all shapes and sizes. You don't have to go to the gym to get a good workout.

Here is a hardcore one I found on Crossfit:

"In memory of Navy Lieutenant Michael Murphy, 29, of Patchogue, N.Y., who was killed in Afghanistan June 28th, 2005".

For time:

1 mile Run

100 Pull-ups

200 Push-ups

300 Squats

1 mile Run

Partition the pull-ups, push-ups, and squats as needed. Start and finish with a mile run. If you've got a twenty pound vest or body armor, wear it. Of course not everyone is can do 100 pull ups or 200 pushups, but you might be surprised what you can do if you really push yourself.