I got a $20 fire-resistant lock box just to keep my backup codes in, written down on index cards. It was a huge pain in the ass to go back into all my accounts

I got a $20 fire-resistant lock box just to keep my backup codes in, written down on index cards. It was a huge pain in the ass to go back into all my accounts and get the codes. In many cases, I had to reset 2FA to get the codes. But now that I've done this, it's easy to keep up when adding 2FA to an account, and I no longer have the anxiety of worrying about getting locked out of important accounts. Another idea I've been considering is a separate password manager account (from a different provider) just for backup codes. It would have a really hard password and 2FA stored on paper.