I am an organ donor, and my immediate family and all of my close friends know it. I am not concerned about a doctor letting me die to take my organs because I also have an advanced directive that is extremely detailed regarding the circumstances under which I would want to be on life support and/or have feeding tubes. I don't want my family to be faced with making those choices.
My family and close friends also know that I want my casket CLOSED and I have told them all that I will come back to haunt them if they open my casket. My mother or other closest living relatives have permission to view my body for identification and/or for emotional closure; otherwise, it is to be closed. I think the body viewing ceremony is very weird and awkward. Like I really need to look at someone's corpse to know they are really dead? It's just strange to me. I want photos -- many photos -- of me to be placed around my closed casket so my loved ones' last image of me won't be of my dead body.
Sorry, that was really a rambling post!