Unbreakable crypto: Store a 30-character password in your subconscious memory
This is basically the same method I use for laptop hard disk encryption. I don't remember the password, but I typed it so many times my fingers remember exactly the pattern to type. Kind of like playing a piano.<p>Several times i've been drinking and am unable to remember how to log into my machine, because I can't replicate the pattern and don't remember the password. After 15 minutes of concentration it comes back.