Got some get-up-and-go this morning? Great. Now put on those running shoes, strap on your iPod, and do whatever it is you do to prep for your fancy fitness routine. Whatever you do, just make sure you do it outdoors -- and with a trash bag.

You are about to embark on an eco-running journey. The concept, started by Samuel Huber of Milwaukee, is simple: Just hang on to that bag and pick up any trash you encounter along your exercise route. Huber wants runners to combine their passion -- running -- with a purpose -- cleaning up the environment. He's sure it will make a difference. According to treehugger.com, studies show that by cleaning up an area you remove the incentive to contribute to its mess.

If you're not a runner, have no fear. You can still pick up litter while you walk, rollerblade, skateboard, or hike. Use your imagination. Just don't forget the trash bag.