Vanity -- refurbished desk painted and worn down hot pink -- cutte for a girls bedroom maybe? If I had the space in my room I'd be all over it!
If we stay in this home for a few more years, we'll definitely need to utilize more of our vertical space for books. Shelves above windows and/or doors might be the perfect answer to that. Otherwise, in bedrooms, a shelf near the ceiling encircling the entire room.