You probably have accounts on more websites than you can remember---we definitely do. There's simply no way to easily remember every single password without duplicating passwords or resorting to some sort of pattern. But reusing passwords is dangerous---it can put you at risk when a service's password database leaks, for example, and that happens often.
This is where a password manager comes in. As long as you create a strong master password that you can remember, that's the last password you'll need to deal with. A password manager can generate strong, unique random passwords for you, remember them, and automatically fill them in for you.
There are a lot of good password managers out there. We're big fans of 1Password, Dashlane, and the open-source Bitwarden. Our favorite password managers have apps for every device, integrate with all popular web browsers from Chrome to Edge to Firefox to Safari, and they sync your passwords across all your devices. (If you want to keep your data entirely under your own control, you can use KeePassXC, too---or set up your own syncing server for the also-open-source Bitwarden.)
This is where a password manager comes in. As long as you create a strong master password that you can remember, that's the last password you'll need to deal with. A password manager can generate strong, unique random passwords for you, remember them, and automatically fill them in for you.
There are a lot of good password managers out there. We're big fans of 1Password, Dashlane, and the open-source Bitwarden. Our favorite password managers have apps for every device, integrate with all popular web browsers from Chrome to Edge to Firefox to Safari, and they sync your passwords across all your devices. (If you want to keep your data entirely under your own control, you can use KeePassXC, too---or set up your own syncing server for the also-open-source Bitwarden.)