Membership has its privileges at Costco, and in a bid to keep it that way, the retail giant is piloting a new way to keep non-members out of its stores. Costco is testing card scanners at the ...

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Next time you head to Costco, make sure you have your plastic or digital membership card – and a matching ID. The members-only warehouse retailer is really starting to crack down on non-members.

There are so many reasons to have a Costco membership: bulk-buy deals, tasty free samples, travel deals and big purchases that make that membership more than worth it. But that upfront annual ...