I only use the most secure password ever: password

Jokes aside, just about any time I set up an insignificant VM that won't be internet connected or live for long enough to be a threat to me ( think installing a distro/old windows in order to give something a quick check ), I tend to use P@ssw0rd or the same thing with a 1! at the end. Only because that's basically the password I've commonly seen when doing things like when I had to set up a VM for a Linux Fundamentals college course or for any work done in a Linux VM set up in an online lab through a certain company.

But anything serious, I will either make up a password or have a password manager do it for me, even to my own detriment. Still have a locked zip folder that I'm pretty sure has a password of at least 20-25 characters long I can't access because my memory, if that tells you anything.