One in particular: the cover was completely black with no markings. I picked it up, and when I figured out what it was, I said, "Oh, right, of course that's what this is." Cool points to anyone who can guess it from that description -- certainly one of you recognizes it.
Also, I got a copy of Hooked on Classics, which rosefox had hooked me on about a week before they moved out of Dreamland Beta. Woohoo! (Sadly, suzanne doesn't seem to share my enthusiasm for this. Ah, well; I'll rip it to CD and play it in the car.)
And there are many other things, which I shall woohoo about later.