If you're one of the millions of Costco members relying on the Citi-issued Costco Visa, it's time to scrutinize your wallet and rewards. The current agreement between Costco, Citi, and Visa is set to ...

Many people love Costco because of its wide variety of products (and the free sample stations you can pick from while you shop!) However, some don't like the retailer's restrictions on payment options ...