I agree it is really important to have procedure books!
The way I put it to my board was that something could happen to any one of us (have a personal crisis of some kind) and be "out of pocket" for a while. If that happened, someone should be able to pick up the procedure book and figure out what you have done, and be able to duplicate it.
I also got called "obsessive compulsive" by a couple of people- but when a hurricane hit our school and a couple of people had to drop out to take care of family stuff- we were glad to have those books!
It also helped everybody to have a place to keep all of the "paper trails" we have (minutes, treasurer's reports etc.). That way no one could say they were not informed.
Another good way to keep everybody organized- I invested in some clear plastic "boxes" (paper trays that stack) for each member of the board, including committee chairs. These were kept in the PTA storage area (also our Family Resource Room), Then if somebody had to miss a meeting, any flyers handed out are put in their box. It is also a good way of communicating. We can drop notes, etc. it took a little training for everybody to get used to checking their box- but now it is habit- one everybody appreciates.
so don't listen to the "nay sayers"- get your board organized!