Costco Members Cautioned About Using Their Membership Card—Don't Use It As a REAL ID

Costco is a popular big-box membership warehouse club, offering discounted prices on brand-name merchandise in bulk and non-bulk sizes. Costco is actually the third-largest retailer in the world, only behind Walmart and Amazon, and is a Fortune 500 company.

"With hundreds of locations worldwide, Costco provides a wide selection of merchandise, plus the convenience of specialty departments and exclusive member services, all designed to make your shopping experience a pleasurable one," the company states on their website.