In fact, Catey suggests that roommates actually write up specific guidelines and rules for living together — ground rules for how much rent each person pays, security deposits, grocery bills, having parties and guests over, you name it. This document then becomes the holy grail for mitigating roommate misunderstandings and conflicts — the idea being that if you point to the provisions in this document when a conflict arises, you'll find the solution. Sounds like a good piece of paper to have around the house, huh?
When I lived with roommates, we were always able to handle our house duties in a timely and respectable manner and generally find reasonable solutions to any conflicts, but we never detailed all of our living stipulations in an official document. Still, under different circumstances, I'd probably look into making a set of written house rules. What about you? Do you have your rules in writing?