Also print print out the QR code used to sign up for TOTP. That way it's easy to enroll a new laptop/phone/yubikey. Once printed out, put in a plastic bottle

Also print print out the QR code used to sign up for TOTP. That way it's easy to enroll a new laptop/phone/yubikey. Once printed out, put in a plastic bottle and bury it in your backyard :)