ShopRunner offers a 6-Month ShopRunner Membership for free. That's $40 off and one of the best deals we've seen for this shipping service. (We last saw a one year membership for free with a $50 purchase in October.) It includes unlimited free 2-day shipping, free shipping on returns, and more. Vendors that use this service include Toys "R" Us, newegg, Lord & Taylor, Calvin Klein, RadioShack, drugstore.com, and more.