Byron,
Find out what her fave candy bar is and buy it for her out of the work vending machine. Draw her something cute and put on her desk and, like WLover mentioned, offer her to borrow some of your CDs, but totally suppress your love of Janice/Mokey, and it's okay to say you're a Muppet fan "since childhood" and that will be okay.
2 strikes against you so far is that you're broke, and she knows it by lending you that 50 cents, plus you were rather forgetful and clumsy leaving the key at home and dropping the CDs, which makes me wonder, on ya'll's anniversary, are you going to forget the date and drop the gift?
Hmm.
Just some things to ponder.
FOZ