Here's another blog post (http://journal.neilgaiman.com/2006/10/important-and-pass-it-on.html) from Neil Gaiman, this time on the importance of creative people making wills that set out what should be done with their creative works. This seemed very relevant here. I'm aware that most members are in their teens or twenties, and probably reasonably healthy, but there's always the possibility of something like a road accident or an undiagnosed medical condition.