I don't have one, but I am about to make one. The information I need most later on is the dimension of the blocks and/or a diagram of the layout. I usually use scraps, so yardage isn't available. I find that I want to make something similar to a quilt I have done before and can't remember pertinent information. I would include a picture, dimensions, reference to instruction location (or my own sketch), and then finally where the quilt went. I can definitely see the value as well as the enjoyment from it.