Books, books and more books! I've always wanted to have a high-ceilinged room with books from floor to ceiling. so high in fact, that you need one of those slidey-ladders to reach the uppermost shelves.
I have a ton I books which sit on a shelf that serve no purpose any longer. Keeping the essentials and adding more decor looks much more appealing. Add a well decorated bookshelf to a room, best/easiest decorating secret ever!