impaired but not demented

I just ran into an old article in the New York Times about the needs of people in the early stages of Alzheimer's disease. It seemed to me applicable to Lewy Body too--what can someone do in the years after they are impaired but before they become incompetent? It stresses support groups and advocacy, which don't interest John. What I wish he would do is go through his stuff, figuring out what is worth keeping and writing down the stories behind family things. I'm working on hiring a student to help him with organizing one or two afternoons a week, but it is hard to get John to tackle the things he has too many of (from clothes to videotapes).