I used to have a book of passwords but now I use LastPass. It stores all your passwords in the cloud and then you have a single password log in (once in a while). It'll generate passwords for you but there's nothing automatic. It works across all my computers (3) and the paid version works with smartphones and tablets. It's not perfect. Some web sites have weird log in urls and when a site reorganizes it gets confused.
I never change passwords unless I forced to.
If you have a problem & think that someone else is going to solve it for you then you have two problems.
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