Thanks to my little brother I have discovered Amazon's dirty little secret.
If you have an email address that ends with .edu, you can get free two-day shipping for a year! All you have to do is click this link and it'll bring you to the place where you can sign up for an Amazon student account.
Ah, just in time for textbook shopping. And being a UMass student I do NOT buy my books from the evil textbook annex that wants all of my money with only a 10% return.