What do you write in your commonplace book?

[rebecca]

If you have one... obviously.
If you don't, you should, it's quite fun (:

Anyway, I've recently started keeping a commonplace book, and I write words to look up (and when I've looked them up, their definition), odd coincidences, random facts that I want to remember and codes that I write.
What do you have?

[Deleted]

I, er, used to have one back in 2005 when I was 14... I wrote down Gundam Seed Destiny theme song lyrics... Instructions on how to play Go... A sketch of, well, you can call it a map, of my friend's house... sketches of eyes...list of Gundam websites...and Harry Potter's O.W.L. results. ;D