I have organ donor listed in my driver's license, but I really should let my family members know about my wishes. In all seriousness, there's a pretty dire need for more and more organ donors. I believe there's a few European countries where you are automatically considered an organ donor unless you opt out. That seems to me to be the most practical way of going about the whole thing, otherwise, so many perfectly good organs that might save lives are just going to go to waste.