Similar to Jax, but with only one big ringbinder, with dividers for each surname.
Data then gets transferred from the ring binder to my hypertext book and, since monday (!) to my new web-site at rootschat. I can then get rid of any notes in the binder, thus keeping the size down. The book/web-site is now my "official" repository for all data !
The hypertext book gets burnt onto a CD once or twice a year, for distribution to the rest of the family.
Knowing that others will read it, or looking at my web-site, is a great incentive for not just having loads of scribbled notes.