I would at least get as much as possible written out or use which ever program in the computer. He can title it to remember or go back when he wants to edit. That is why so many of us take photos or bookmark/add to favorites, etc. I have lists of quilts for whom I think would be a good match and ideas of colors and varied blocks. I sometimes write in a journal on line small tidbits/notes of the day. He should try that. Just his notes alone might be an interesting read.