Good old New Egg.  I lost access to an e-mail account that I was certain had pre-ordered a game.  I wanted to cancel the order and re-order it with another e-mail.
No record in their system of that order, never heard of me.  Yet that copy of Zelda still arrived Wednesday without a packing slip or invoice number.  At least it wasn't an unpackaged hard drive in a large empty box this time.