Organic has finally gone mainstream and more than ever, shoppers are using their food dollars to support sustainable living. Over at Slashfood, Marisa recently pointed us to a terrific quiz from The Green Guide about choosing organic foods. Making the best organic food choices doesn't always mean just shopping at Whole Foods or reading the claims on the front of the packages. If you really want to test your knowledge and see how much you know about organic foods, go take the quiz. You'll learn why organic peaches are a better use of your food dollars than organic bananas, and why you should extend your local eating habits past the growing season. How did you do?