Bookshelves can quickly become an unsorted, cluttered mess of media when you start putting random books, films, games and other things in it. While you can't make your shelves organise themselves, IKEA Hackers suggests a clever tip that spells out the shelf's purpose so you always know what you're going to get.
As you can see from the photo above, IKEA Lerberg wall shelves were taken and cut with a handsaw to spell out the word "FILM". (And, presumably, there are films on DVD inside of those shelves.) The instructions for putting a custom word shelf together are pretty simple too:
Cut the Lerberg with the hand saw for metals and then use the metal plates and the self-tapping screws on the back of it to build the letters. Mount on wall using the supports for Lerberg provided in the package.
While you're probably not going to go about spelling any long words, FILMS, BOOKS and GAMES are all feasible. You could always organise your shelves the old-fashioned way and just attach a few labels, but this method is pretty cool and makes it easy to tell which shelves hold which type of media.
Spelling with Lerberg [IKEA Hackers]