I am using 2fa as my security in my emails and exchange accounts, so one day I nearly lost my phone and that phone holds majority of my pins, 2fa, etc. so I thought I lost all, luckily I found the phone. So now I'm thinking of buying an extra phone for backup. What else do you recommend for backup?
Well this was happen to me also just few month ago. Even i lost my smartphone where i was holding all the important wallet id's and private key and then i got my phone back after two days. But after that incident i used three things for the backup purposes one is using another smartphone on the other side for 2FA, and other login purposes.The second option is writing it on either Online google docs or write it in a file a upload it on google drive. Third option is using a extra email id where you send all the keys and ids and also i manage all these things with strong 2FA Authorised passwords.