If you can afford to shop in bulk at places like Costco, you can save a lot of money overall compared with weekly trips to the grocery store. And right now you can save even more with a free $30 Costco gift card when you buy a one-year Gold Star membership via StackSocial. That’s like getting 50% back on the $60 cost for the membership and as good as free money if you plan to shop there regularly. 

This offer is available only to new customers, or those whose memberships have been expired for more than 18 months. There’s no set expiration for the deal, so there’s no telling how long it will remain available. We’d recommend signing up sooner rather than later if you don’t want to miss out on these savings. 

Read more: How to Get the Most Out of Your Costco Membership

With a Costco Gold Star subscription, you’ll get one membership card for your household. It allows you to shop at any Costco warehouse worldwide, as well as online at Costco.com. And while Costco is a great place to save on groceries and other everyday essentials, it offers a lot more, too. A Gold Star membership also means you can use Costco gas stations and pharmacies, as well as its optical and hearing aid centers. 

After you sign up, you’ll receive your $30 shop card via email. The card can be used both in-store and online. It’s also worth noting that after you pay for membership through StackSocial, you’ll have until Nov. 14 to redeem the membership, or you may not be able to take advantage of this deal.