Which means that when I'm putting one away, I basically just have to look for the gap.

However, our books are arranged alphabetically by author. Books by the same author are oldest-first (which meant that arranging the Pratchett books took some time).

CDs are also alphabetical, but we have a mutual disagreement about whether Gåte goes at the end of the Gs (after Guillemots) or at the beginning. Will you tell her I'm right to put it at the end?

I haven't heard of this "alphabeth" thing, but it sounds interesting – I might check it out. Is it some kind of Greek/Hebrew hybrid?