Next time you breeze through Costco’s self-checkout, don’t forget your membership card—and your ID. Costco’s cracking down on card sharing by stationing staff at self-checkouts and using tech to make sure only real members get the deals. So, if you’ve been using a friend’s card for those $1.50 hot dogs, it’s time to get your own. The upside? Faster lanes for legit members and a little more peace of mind that your membership is worth it. #Business #LocalBusiness #Costco