We wrote a 3-page roommate agreement and it was the best decision we ever made

Before moving in together in Cotswold, my roommate and I wrote out cleaning schedules, guest policies, thermostat ranges, quiet hours, and a process for resolving disputes. Sounds excessive. Saved us from at least a dozen arguments over 18 months. When we disagreed, we referred to the document like it was a constitution. Zero drama. 10/10 recommend.