I have a file in one of my Flash Drives called Quilt Descriptions. I keep track of the number of the quilt firstly. The Log Cabin I am making for Jim for Christmas is number 69. I put the name I gave it, the block name, the size, the date it was completed, (but not the start date) Just anything to make it interesting.
At one point I even had who in my family would get it when I was gone, but I did not have enough for the entire family so I had to take that back out. I even kept some scraps of fabric from each one so that I could keep track of how much they might fade over the years, but that is not in the flash drive.