Forget the privacy concerns, grocery store “club” cards cost most consumers money. This article lays out very clearly why ultimately most shopper’s bills will actually increase with these programs, and evidence that this is the case and will only get worse. Unfortunately, even the local store which recently made a big production (literally! we got videotapes in the mail!) about getting rid of sales and lowering prices a little across the board still offers club card discounts. The rest of the site also has some interesting essays about privacy issues with these cards. [via RRE]