Passwords, particularly passphrases, are easy to remember and you can reuse a similar structure for probably decades: - There-are-three-ducklings3-in-the-lake

Passwords, particularly passphrases, are easy to remember and you can reuse a similar structure for probably decades: - There-are-three-ducklings3-in-the-lake - There-are-five-swans5-in-the-lake - There-are-six-hedgehogs6-in-the-bush And so on. You only need to remember the latest number and animal, but the entropy of the whole string is much higher unless someone also knows your personal password structure (which is kind of like a second factor). With a password manager, you only need to remember that one passphrase. If you have to enter it daily, I think it’s very difficult to forget. You can access your passwords mostly independently from any device and it’s probably about as secure if good generated password hygiene on websites and services is used.