We have all seen the show Extreme Couponing and have heard the stories. There are people out there who can walk into a grocery store and walk out with hundreds of dollars worth of food using nothing but coupons and their own penchant for organization. The rest of us are left to wallow in resentment, since we know deep down we don't have the discipline for those rewards. Then that resentment is followed by a certain brand of consummerist backlash. "These people are going too far. Do they really n …