Heads up, deal hunters! Groupon is offering a sweet incentive for new Costco members (or those who haven't had a membership in at least 18 months). Sign up for a Gold Star membership at the regular price of $65 or an Executive membership at $130, and you'll snag a $40 or $60 Costco shop card as a bonus! This is essentially free money to spend on those bulk-sized goodies. Why does this matter to you? Well, if you've been on the fence about joining Costco, or if your membership lapsed a while back, this is a great way to try it out and get some value back right away. Just remember, this offer is only valid for new members or those whose memberships have been expired for a year and a half or longer. You also need to purchase the Groupon by December 21, 2025. And, pro-tip: click through a shopping portal like Shopback before buying the Groupon to potentially earn even more cashback!