This is great. My father had a file we all knew about called "When I Die" (yes he had morbid sense of humour) with instructions about things like belongings assets, funeral etc. Writing this out for us took so much weight off our shoulders knowing that we were able to deal in an organised fashion with things according to his wishes.

Another commenter talked about lasting PoA and they are good to have too in case of incapacitation. But it should also be accompanied with guidelines so people know how to give care for both the indisposed and those most immediately affected.

All of this boils down to this being a document that shows your survivors how much you love them by dealing with this while you can.