Can Two People Use the Same Costco Membership Card?
Learn why Costco membership cards are non-transferable and how additional cardholders can be added to a household membership.
Can You Use Your Parents' Costco Card at Self-Checkout? Membership Rules Explained
Learn why Costco requires the cardholder to be present at self-checkout and how membership benefits work.
Can My Girlfriend Use My Costco Card? Key Membership Rules Explained
Learn about Costco membership rules and whether your girlfriend can use your card. Discover options for guest access and additional memberships.