For my first project, I tackled the two-drawer paper box (the smallest of the 3 boxes).
It wasn't that full and the items inside were mostly papers (and not photographs). All of these papers were folded and some were even enclosed in their original envelops.
I started by pulling one stack of papers out of the first drawer.
I looked at each item, one at a time, taking it out of its envelop.
I then put the item back into its original envelop, indicating on my sheet if it came in an original envelop.
Once I filled up one page of my notebook, I bundled those items on the first page and put a rubber band around them; then I put a sticky note on the first item with the number corresponding with the notebook page.
If I found something interesting in the stack, I put a sticky note on the item so that it sticks out of the pile. I also put a sticky note on the first item of the stack to indicate there is something of relevance within the pile. I also put a big star beside the item in the inventory list
In this bunch of papers, I found several documents of interest - the marriage certificate of my great-grandparents, the deed to their house, an old deed to some cattle that was sold in the 1800s, and my great-grandmother's cancelled checks. I thought these items were significant, so I put a star beside their entries in my inventory list.
When I finished going through the two file drawers, I had accumulated four bundles. I then placed the banded bundles into a numbered oversized photo box.
Later, when I'm ready to start writing about and sharing these documents, all I have to do is consult my inventory list to see what bundle it was placed in, then pull that bundle out of the photo box and retrieve the document.