andyt andyt:
what about those password managers where you only have to remember one password. Any good?
Depends. I use Mozilla's. They encrypt passwords locally, and don't share with anyone. Microsoft's, not so much. Keypass rocks.
Find out what they do with your passwords, and see if it's OK with you.
I also use 'graduated' passwords, that have a predictable pattern so I don't have to use a manager if I don't want to.