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Costco Wholesale, the bulk retailer with 139 locations in California, will soon require shoppers to scan their membership card prior to entering a warehouse.

Another reader reminded us that nonmembers can shop at Costco if they have a Costco gift card. Costco, which says it has 128 million cardholders in 73 million households, reports its earnings in ...

Costco CEO Ron Vachris explained the benefits of the company's new membership card scanners in U.S. stores during the retailer's latest earnings call, and said customers see the pluses.

Costco is reportedly testing out a membership card scanner at the entrance of a Washington state store. Christopher Sadowski. The company is also an international retailer, with warehouses in ...