Costco members can score major savings with discounted gift cards on restaurants, travel, and more. Don’t miss this overlooked shopping hack.

If you prefer to shop in-store at Costco with a credit card, then make sure you have a Visa-backed credit card. Here are CNBC Select's picks for the top credit cards for shopping at Costco.

While you may already receive special promotions for being a Costco or Amazon Prime member, you can increase savings by using one of the store's co-branded credit cards. Costco offers the Costco ...