Algorithmically generated passwords for different sites was a mind-blower. There are so many differentiation algorithms that are trivially runnable in your head. If most sites are salting and hashing passwords correctly (this is 2023...), then that drastically decreases your compromised credential blast radius. -- And it makes me sad that "store your passwords on dead-tree paper" became GOTO. It has serious weaknesse…
Bitwarden. Its dead simple and cross-platform + regularly audited. And either FREE or $10 a year for 2FA and some other nice to haves. Obviously there's other choices for those who want more control over it but you can't go wrong with BW.
It's a shame though because Bitwarden is philosophically what I'm looking for.