Did you know that the scanners at supermarket check-outs can make mistakes? And that these scanner errors cost shoppers precious dollars? When you check out, watch the prices closely as each item is scanned. Sometimes foods get scanned twice by mistake, sale prices don’t get programmed into the register, non-taxable items get taxed, or scales charge for the weight of a food package (such as a salad bar tin) when they should charge only for the food. Watch prices carefully and save!