Do you label your posts? You know that little box at the bottom that says "Labels for this post:"
Well, for some strange reason I decided early on that I wouldn't trouble myself with that little doohickey. Just a bother, I thought. Now I wish I had done it from the very beginning. I'm having to go back over 300 posts to make it easy to retrieve information.
Take a bit of advice - if you haven't already, then start labeling your posts. You never know when you might want to take a peek at what you've already written on a certain subject. If only not to contradict yourself! Ha