[toki5]

My muscle memory is astonishingly strong (probably from two decades of classical piano training).

I use this to my advantage with passwords: When I need to generate a new one, I play a "song" into Notepad (or vim as the case may be). Not a known song, but a seemingly random string of glyphs that make sense in my head at the time.

Practicing typing that string forms a powerful association with that account/website and that "song," and my hands remember it for the rest of my life.

The one big drawback to this is that it's nearly impossible for me to enter passwords on my phone without having a keyboard handy and arduously trying to recreate the string. Also, changing a password (not that I usually need to) is a little difficult because I have to retrain myself.

The advantages are: They're not written down anywhere; I don't have to struggle to remember which permutation of some base string I used this time; they don't follow any sort of pattern.