I keep backup codes for my account in two places: My wallet (which I always have on me, so I won't be locked out if I'm traveling), and at home. If you're reall

I keep backup codes for my account in two places: My wallet (which I always have on me, so I won't be locked out if I'm traveling), and at home. If you're really paranoid, you could also give backup codes to a friend or relative, or put them in a bank safe or something like that.