Rules of Roommate Etiquette Whether you're a college student a young who a roommate for economic reasons, you'll have a much better experience if you follow some basic rules of etiquette. Establish some basic rules The first thing you should do with your new roommate is to sit down and establish a short list of rules. List the most important things that each of you expects. Include how to divide the bills, who pays for what, policies regarding guests, cleaning schedule, and anything else you can think of. Don't borrow without asking Your roommate might have the cutest top that hasn't been worn in ages, but that doesn't give you the right to wear it without asking. She might be saving it for a special occasion. Ask permission first, and always honor her wishes. If she gives you permission, and you spill something on it, pay to have it professionally cleaned. If that doesn't work, replace the item.