Recently we've gone over free ways to enhance your online security with password protocols. There are numerous companies that can help you maintain your password lists or "vaults". Recently I've tested LastPass & can say I'm quite satisfied. They offer freemium & paid versions of their products.
Password managers centralize your passwords into one easy to maintain & secure vault. This vault can be shared across devices with account access & different privileges for multi-user accounts. The neat thing is you can secure your password managers with any of the numerous authentication apps, such as: GoogleAuthenticator, MicrosoftAuthenticator, LastPassAuthenticator, etc.
Here's a link to LastPass: https://www.lastpass.com/
Check out their service & implement a password manager, whether it's with them or another provider. This will greatly increase your productivity & reduce the stress of maintaining a secure digital space.