You may have never tried this, but throw a couple of basic pieces of equipment in your car, or better yet a pick-up truck. Drive over to a local park, or even an empty parking lot, if there aren't any good parks close by. You don't need much. Yasser and I had a great park workout with just a 25 Kg (55 pound) bumper plate, a pair of iron boots and my light pulling harness. We were at a city park that had a nice set of small bleachers and bars that we could use for chins.
Here's the workout.
Warm Up with a short jog.
Curl & Press the Plate
Leg Extensions with Iron Boots
Thai Knee Kicks with Iron Boots
Stiff Leg Deadlifts with Plate (High Reps)
Truck Pulls (forward and backwards) till you're gassed
Hanging Leg Curls with Iron Boots (This relaxes the spine and stretches the hamstrings.)
Go to the ice cream shop and the truck pulling loser buys.