With the price of food--and just about everything else, for that matter--continuing to rise, spending $7 on a gallon of organic milk is a luxury that most people just can't afford. But living a green lifestyle doesn't have to break the bank. In fact, it might even save you money, if you heed the advice of these iVillage and GardenWeb members. From the grocery store to the laundry room, they share their secrets for cutting costs the eco-friendly way: by conserving resources, being frugal, and mak