The problem with collections

In a previous post I mentioned I had a collection of unread Wired magazine. Well, I decided to start reading them, which would have meant that I would not have a collection of unread Wired magazines anymore. So, I put them in chronological order only to find that I was missing one! It's like you are about to complete a puzzle and then you find out that one piece is missing. Even worse (and you can blame Murphy for this), this piece is ALWAYS in the middle of the puzzle.