Someone asked for an idea how "not to forget login codes". I noticed how I mixed up codes. Then, for security, I wanted to unlock my android 6.0 (which I never did before). There they offered an extra option besides text and numbers: a patern. For me, that workes like a charm!!! You get a screen with 9 dots, and with your finger you draw a patern, which magnetically sticks to the dots. Its easy to remember, but hard to give to a robber, because its not a word, or number, but hard/long to describe, and easy to remember. At least that's my experience....