Oh, I hear you on the managing of books. I still have some tagged with 'not seen in 2011 check', so I really feel the pain on that one. (I have teetering mounds of possibly uncatalogued books, and three kids rooms with books that I'm probably getting duplicates of because I don't already know we have them). Personally, I think we need to lose 1000 books to be under control and get rid of the temporary bookshelves in the games room, so I hope that yours isn't quite so bad!