Smead’s Life Documents Organizer is one place to start. The simple to use kit gives you suggestions on all the vital documents you might want to gather and store in one place (or at least store copies, with instructions on where to find the originals).
In addition to you and your family’s vital documents, you might also consider doing the following. Do a physical items inventory – you can either make a list of all your items valued at more than $100 or you could make a video and note items of special importance or value.
If you do a video, make sure you open closet doors, dresser drawers and cupboard doors and go slowly to give a full picture of the contents Assemble a list of all the companies you do business with along with contact information.