Some shoppers looking for holiday deals may head to Costco for bulk bargains. The membership warehouse giant has become ... receive a $45 free digital Costco Shop Card to use on future purchases ...
you can use a Mastercard or Discover card at Costco.com and via the Costco app. If you prefer to shop in-store at Costco with a credit card, then make sure you have a Visa-backed credit card.