It's time to get in real shape while exercising green. While, yes, walking is a green exercise (since it's human-powered, requiring no electricity to make you go), as are sit-ups, push-ups and tricep dips; but many of us don't have a whole lot of time, nor the know-how to come up with an hour-long body weight-only, total-toning workout. Aren't we all looking for ways to cut time off our workout while getting more out of it (and of course, for little to no money)?

Well forget about all of that expensive, heavy, electricity-requiring gym equipment. For many of us those machines are so cumbersome and complicated that they tend to ward us off anyway. I have found the most basic, yet ridiculously effective green exercise band workout that can literally kick your butt in 5 minutes (believe me...). Just imagine what it can do to you in 30-minutes! Instead of a full 60-minute workout, the Core Transformer workout created by celeb trainer Linda LaRue will burn just as many calories, engage even more muscle groups, and get you seriously sweating in 30 minutes. Promise.

The concept is simple. It's literally a no-brainer exercise that as you do it, you think "why didn't I think of this?" Linda shows us how to move our bodies in exercise the way we move in daily life: functionally, 3-dimensionally, engaging multiple body parts at once... but with resistance. If you think about it, most movements are initiated with the trunk (the core/abs). When you move multi-dimensionally (ex: arms and legs simultaneously), you can't not engage the core, which is why the Core Transformer is also referred to as Crunchless Abs.