Good day, just want to share my experience,
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?
You should be, note taking is great. Personally speaking, I usually forget things big or small, then I came to the point that I should not commint to this kind of system so I make a schedule, so I can keep myself on track and I make a list of the things I shouldn't forget like addresses, passwords and even wallets and it is a good back up ,if you come to the point that you lost your gadget.