Thought a few cents off your grocery bill was something to crow about? Think again. Step with Mary Potter Kenyon into the world of BOGOs and blinkies, of rebates and registers, of dumpster divers and double couponers. It's the crazy life of extreme couponing as only Kenyon, a coupon queen herself of over 30 years, can possibly describe. Meet today's coupon extremists, master the lingo, and pick up a few tips yourself to save money more than you ever knew was possible.