My memory is too unstable for me to trust my brain to remember NUMBERS. With my lang I can just remember that I had "they died" as pass on this account, "3 cities" as pass on some other account. If I ever forget the actual transcript I got it all in my notebook.
One way I used to make passwords was to take something I liked then take each letter and use a phone and use the letter/number thing on the phone to change the letters to numbers. Of course, I don't do that now, but I used to. Lol.