Sign up for a 1-year Costco Gold Star membership for $65, and you'll get a $20 Costco shop card to spend at your leisure. (It'll be emailed to you within two weeks of signing up.) This offer is only available to new Costco Gold Star members, or folks whose membership has been expired for 18 months or more.

You can also opt for a Costco Executive Gold Start Membership for $130, and you'll get a $40 shop card — this higher membership tier unlocks an annual 2% reward (up to $1,250 on eligible Costco and Costco Travel purchases) and additional discounts on Costco services. Buy Now at StackSocial