For good master passwords: Randomly select 12 words from a book (be honest with the randoms, don't be choosy), and then doodle a picture where each word has a memorable element. Draw it a few times. Put one copy away for safe keeping. Work through the image whenever recalling your password, and once it becomes muscle memory, make a point of imagining it as typing it every once in awhile, to make sure you don't turn it completely instinctual :)