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Working out at home is a great way to get fit -- no gym memberships or expensive trainers necessary, just the great outdoors, your garage, even your living room floor. And don't think you need to shell out a load of cash on DVDs to whip your body into shape. CafeMom says there are free exercise videos all over the Internet.

CafeMom names Exercise TV as a favorite for videos featuring quality moves taught by certified fitness professionals. Whether you want rock-hard abs or a strong and sexy shape, you'll find plenty of inspirational tutorials here.

That's Fit blogger and certified Pilates instructor Lisa Johnson made the CafeMom cut, too, for this core-strengthening Pilates video. "She makes it look so easy and has such good form," says Cafe Cynthia.

You'll want to be careful when shopping for exercise videos online, though, because there's no way to tell for sure if "instructors" are certified or not, and you may end up with unsafe advice. Check with a fitness professional or your doctor if you have any doubts about the information streaming across your computer screen.

This treadmill workout is one you might want to avoid.