But Costco members can benefit from the store's branded credit card because it offers a major perk – 2% cash back on all ...

Costco does credit cards very differently than any other retailer. It makes an exclusive deal with one credit card brand, then partners with a bank to offer a signature version of that brand's card.

Costco cashier ringing a customer up at check-out - Elliott Cowand Jr/Shutterstock While it may be difficult to believe you're saving money at Costco -- especially if your receipt always tallies over ...

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