It may not work in time for Christmas anymore, but here’s another offer for a free 1-year Shoprunner membership. Enter offer code RUNNER. No credit card required, it is optional, just asks for an e-mail address. Shoprunner is similar to Amazon Prime in that it offers unlimited free 2-day shipping with no minimum order amount from a variety of online merchants. Via staff of FW.
After you get your free year, you can also get another free 90-day extension by going back to the home page and signing up for Shoprunner Central. This service scrapes your Gmail or Yahoo e-mail account to help keep track of receipts. You need to allow them access your personal information, which I was not cool with, so I just used my seldom-used @yahoo.com e-mail.