This looks like a really useful tool: The Big Book of Everything: A Free Life-Affairs Organizer * Get Rich Slowly. I know that I tend to keep a lot of stuff in my head or organized in random places that make sense to me that would be crucial for my family to know about should I die or be in a coma. Filling out something like this would be a big help to whichever poor soul is in charge of closing down my affairs. I really like the author’s suggestion that you do a page a day rather than tackling the whole thing at once.