The free items are a 12-pack of paper towel, 24-pack of flavored water, and a whole pizza.
Brad's Deals Editor Marisa,
Get a Costco Gold Star Membership bundled with $20 Costco Cash and three free items for $60 at Groupon. You'll also get a coupon for $25 off any $250 online order and a $75 voucher towards Costco's travel packages. This is the best deal we found on a Costco membership, even beating their own site. Note that when you buy this deal you'll receive a voucher code that you must redeem on Costco's website to complete your registration. Sales tax is charged in most states.