5 Yubikeys? That's fine if you're really serious about this, but to me even one Yubikey is too expensive for personal user.
Most people don't have a vacation home, or a safe deposit box. I didn't even think you could still get those at most banks. Plus, I suspect most security conscious people would not want to leave anything at their office.
You can leave them at friends houses, but that's not exactly always a secure location.
Phone numbers can at least theoretically be recovered, so my unpopular opinion is that SMS is pretty great for personal stuff.
Most people don't have a vacation home, or a safe deposit box. I didn't even think you could still get those at most banks. Plus, I suspect most security conscious people would not want to leave anything at their office.
You can leave them at friends houses, but that's not exactly always a secure location.
Phone numbers can at least theoretically be recovered, so my unpopular opinion is that SMS is pretty great for personal stuff.