[Via KARE 11]: The non-profit Twin Cities Consumers’ Checkbook investigates aggregate grocery prices in the Twin Cities and finds out that a) shopping at Wal-Mart saves you a ton of money, b) the produce, service and meat are lousy at Wal-Mart, and c) although Lunds and Byerly’s are expensive, they’re awesome on the quality and service fronts. Whole Foods lives up to the Whole Paycheck nickname that dogs the chain.