I live in tornado alley. I have seen the after affect of devastating tornadoes. People in my area know to keep important paperwork close by. When I worked for a tech company, we once set up a mobile computer lab for local residents. When you lose your ID, utility bills verifying your address, etc it is challenging to get help from Red Cross or other agencies. Most people have no clue where to find their homeowners' policies. Everything can be stored in the cloud.It can be as simple as copying documents and storing in a file (album) in Google photos. I can access both mine and hubby's Drivers License, insurance cards, etc from my phone in a few seconds. You can also use things such as Dropbox which require a subscription.
This is an ongoing project for me as I constantly think of new things and new ways to keep my data handy. Another favorite I use a lot is One Note. It is accessible from anywhere. Once you enter anything into One Note it is automatically saved.
i think I actutally impressed a new cardiologist recently when I quickly. pulled up lab reports that he did not have.
I have an extensive spreadsheet that I use for my Mystery Shop records. I make sure to back it up into the cloud frequently.