Oh yeah, that's right. I am cataloguing all of my books for my own personal library. And when people borrow my books, I will know who has them and when they were borrowed. Yes, I realize this makes me a little more than obsessed, but I absolutely loved going to the library when I was little and filling out the card and getting it stamped and returning it to repeat the process... nothing like the nerdiness of a child.
Let me know if you want to borrow a book!