Two-factor authenticating - some basics

@jimmyweg Those are good questions and it's good to think about them before getting locked-out!

Authenticating to other services/websites
1Password supports the Time-based One Time Passcode (TOTP) standard used by authenticator apps. It doesn't support push notifications. My family uses Microsoft Authenticator for work/school accounts that use Microsoft Single Sign-On so that we can receive push notifications.

Authenticating to 1Password
With 1Password you only need to enter your 2FA code once per device, unless using a browser and you set it to delete cookies. All of the 1Password apps allow you to disable 2FA under Settings -> Accounts -> [Account Name]. So as long as you're still logged in on one of your devices, you can always disable 2FA and start again.

There are a number of ways of protecting yourself against the risk of losing all your devices:
1. Use an authenticator app that stores an encrypted local backup of your TOTP secrets like Aegis and keep a separate record of encryption password;
2. Use an authenticator app that stores an encrypted cloud backup of your TOTP secrets like Authy and keep a separate record of backups password;
3. Scan the 2FA QR code with two or more phones, e.g. your phone and a partner's phone;
4. Save the 2FA QR code or manual entry secret so that you can set-up another authenticator app in the future;
5. Print the 2FA QR code or manual entry secret and store it with your 1Password Emergency Kit.

All that said, the most important thing is that your save your 1Password Emergency Kit. The 1Password team can reset your 2FA because it is just authentication. They cannot reset your Secret Key, so the priority is to make sure you have that somewhere safe.