Costco, like some other retailers, offers a membership-based shopping experience both in its warehouses and online. Each membership is paid annually and includes a household card that you present at the store.Here's how the different memberships stack up:Gold StarBusinessExecutive$60/year$60/year$120/year1-2 people3+ people for $60/each1-2 people-Purchase for resaleAnnual 2% cash back on qualified Costco purchases--Additional benefits for Travel and Costco services