I like the idea of writing a poem or story about something you care about using the words. Make sure they're not obviously placed and space them out, then memorize the story or just publish a copy of the little book. Even if others found it and read it, they wouldn't have a clue.
Discussion
Me too. I've said before you could write a story and publish it online somewhere and as long as you know the cipher, no one would ever think anything of it.