Many people who have kids with special needs keep their info in a binder, I filled several binders many years ago and gave up on that route. Now I just organize it by type (school, medical, OT, crisis home, county, MA, etc.) and stick it in a folder. But I let it stack up before I do that, and I need to just do it as I go. Stacks of paper start to stress me out. Between Akila, the trainings I have been doing, my part-time dance job, the other 3 kids, the committees I am on at Children's Hospital, finances and a billion other things, the paperwork has over taken my dining room and I need to devote some time to organizing.
I will do that, someday.