I posted on Twitter and Facebook that I needed to organize my books and would be open to suggestions for doing so. I have had a few responses (some serious, most not!), but thought I would open it up for others. So how do you organize your books. I'm thinking in terms of author, subject, sets (commentaries, or works of a particular author for instance), books of the Bible, etc.
One more question: how much room do you leave on a shelf for future additions?