6) He goes to the dentist 3 times every 2 years. A guy who hits the dentist on the regular has nice teeth and probably OK breath. Also, he probably takes care of himself to some degree. Be careful if he's too obsessed with dental hygiene.
7) He's on good terms with his mom. This one is a slippery slope; you want a guy who has a good relationship with his mom but not too close. This will save you a number of instances of accidentally/on purpose being called "mom." Read: Mama's Boys: Take Or Leave 'Em?
8) He can sleep like a champion. One of the most important things in life is sleep. If he can sleep like a a narcoleptic ninja, that increases your chances of doing likewise. Read: What Sleep Position Says About Personality
9) He's seen The Notebook. That movie was…terrible. But if he's willing to sit through it and not check his phone too many times, he's a keeper. If he's seen it multiple times…he may be a crier. Read: A Guy's Top Ten Date Movies