Nice post @bitcoinandcoffee! Just a few things, first is the safety deposit box. In any kind of a major financial crisis, the banks could decide to, or be told to, lock their doors in which case you're not getting access to your safety deposit box.

Secondly, I strongly suggest you test out the recovery procedure for your hardware wallet. Don't wait until it's absolutely needed to restore your HD wallets, only to then find out that you copied the seed words down in the wrong order or otherwise incorrectly! I have a recent @steemit post that discusses this.