Purchase a Costco Gold Star Membership and enter GSWEB in the coupon field during checkout. You will be mailed a $10 Costco Cash card. Gold Star Membership is $55 per year (plus applicable taxes) and includes a FREE Spouse card. This offer is valid for a new Costco membership only and expires January 14, 2007. A Spouse refers to either a spouse or a family member 18 years of age or older living at the same address.
More details at Costco’s website