Check out http://www.freeshippingday.com/. All the sites on it are offering free shipping this Friday, Dec 17th guaranteed to get to your home by Christmas Eve.
I am big on giving gifts that also give to a cause — especially when you actually get something. In this case, Matt Damon has taken up the important commitment to providing fresh water to communities that have none. Order a quality water bottle at http://www.gift.water.org/ and help Matt and others change the world.