Groupon is offering new members a 1 Year Costco Gold Star Membership for only $60 - which includes a $20 Costco Cash Card and FREE Product coupons including batteries, disinfecting wipes, and other money-saving coupons. The cash card and coupons will be mailed separately within 2 to 6 weeks after you join and will be valid through November 30th. This deal is valid for a limited time only.