Costco is trying out a new tactic in its months-long effort to crack down on membership sharing: Scanning shoppers' cards as soon as they walk into the store. When you enter Costco, you need to show ...
NEW YORK -- Bad news if you're mooching off of someone else's Costco membership: The retail giant is cracking down. When you enter Costco, you need to show your membership card to an employee to shop.