1) The “We’re Kinda Dating”: This friends–forever roommate is difficult to find and even trickier to keep. Does breakfast in bed, love notes when you’re out late and movie marathons on weekends sound too good to be true? It might be, but we’ve heard rumors this exists.

2) The Lurker: This roommate is the stuff of horror movies. Have you ever felt that someone was watching you in the night? Call Sony to pitch the sequel to 2011’s thriller The Roommate.

3) The Unwanted Addition: This roommate is your roommate’s roommate. You knew they were in a relationship. You didn’t know how thin the walls were or how creaky a bed could be.

4) The Absentee: Roommate? What roommate? Not necessarily a bad thing.

5) The Greek Socialite: This roommate parties hard and drinks even harder. Although often confused with the absentee, you can expect the occasional late night together—holding their head over the toilet.

6) The Workaholic: This roommate is commonplace at Penn and simply cannot do enough. “You mean you aren’t enrolled in seven courses, running an international non–profit and working full≠time for Google? What are you doing with your life?”

7) The Mess: This roommate inspired the term “pigsty.” You start to think your hardwood floors were a myth, you may find yourself with a few *extra* unwanted roommates (rats, they're rats) and all you want for Christmas is a clean set of dishes.

8) The Control Freak: This roommate denies their OCD tendencies, but you know the truth. Your every move is dictated by multi–colored Post–its strategically placed throughout the apartment. Ignore at your own risk.

9) The Athlete: This roommate is constantly hitting the gym, whether for a sports team or simply for the sake of “good health.” As hard as you try, you can’t shake the guilt you feel when you opt to sit in bed and stuff your face with Insomnia instead.

10) The Stoner: This roommate is super chill, loves snacks and has a Bob Marley poster (or three). You’ll hear plenty about the Biopond, and may want to invest in some air freshener.

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