Use a password manager. Every account gets a different (and strong) password.
All cool and dandy, until you have to type that random 50 letter string on your TV.
Many PW managers let you generate passphrases, which are all around better than random strings. Length is the most important factor so
finance-caffeine-utopia-redress-unseen
Is way stronger and easier to remember (and type) than
Fl7$j4FWw)&5O
Is it really safer? I mean when trying to bruteforce a password, one would have to make a guess whether it’s a passphrase or not. But if you decided to check for pass phrases, wouldn’t the one you posted be cracked in 5 times the amount of words in that dictionary? I’m not sure how large the vocabularies of the generators are, but I would guess a random 17 char password might be safer than a 5 phrases password?
id recommend custom email addresses… most places let you tack on arbitrary strings to your email address or if you have your own domain, you can just forward all and use anyname@yourdomain on the fly.
no single system compromise can affect any other system