Many college dorms offer or require roomate agreement forms nowadays. It's a contract between the two or more roommates sharing a room or suite, with agreements on policy like cleaning, guests, laundry, use of other's posessions, etc. This is discussed and signed by all parties, then turned in to the hall or floor counselor. This helps ease over roommate disputes later in the year if they happen, since what was agreed upon is in writing and it also gives the counselor some frame of reference for the dispute outside of the quarreler's words.