Everything I plan to save in the event of a fire is in three 18-inch square boxes. They sit at the edge of a shelf in the storage room, and I cut-to-fit and glued down a thick fabric that's bright yellow with neon-blue polka-dots on each one, so you can't miss 'em.
One contains all our family photos, and there's a few photo albums stacked on top of it.
One contains all our banking stuff, including new checkbooks and duplicate debit & credit cards, important paperwork for the house, and all our insurance documents.
The third contains all my former foster son's paperwork; his old CPS folder, his medical history, bio-family history, his (original) social security documents, and all the documents for his secret bank acct.
Since I live in Calif, it's a good idea to have a fire plan.