How do you deal with passwords? Password manager? Txt file? Do you use biometrics on devices that have them?

I was gonna ask about the biometrics part in a separate question, but its both about security, so might as well combine it in one post.

Okay so I don't use password managers. I just try to make easy to remember passwords 3-4 random words + 3-4 random numbers. Online accounts can't be brute forced anyways. Edit: I mean most websites have log in limits don't they? Maybe I've been mistaken?

For offline accounts, I just increase the words and numbers. For mobile I don't use biometrics, although I've been testing whether or not I want a pin + no biometrics or alphanumeric password + biometrics. I just can't decide.