It was nail-biting stuff in the final battle of the " Extreme Couponing All-Stars " (Tue., 10 p.m. EST on TLC). Zealous couponers Joni and Chris faced-off at the cash register for the last time. Which one would take home the coveted Golden Shopping Cart a more

Extreme Couponing,  which premiered on TLC, has elicited some extreme reactions. Some reviewers and viewers have scorned the show as an example of obsessive selfishness. Others admire the ingenuity of the shoppers who are able to reduce $1,000-plus g more