1. Only date American. I am not xenophobic, but the problem lies in accents. They are dead sexy, but you can miss out on verbiage that would cue you into douchbaggery. This is mostly due to our ethnocentric culture, but the fact remains foreign=fling. Exceptions: Australians, Kiwis, and Irish who immigrated in the 90's.
2. If you are younger than 30 and don't have kids, he is younger than 30 and has kids, or he has been married before do not date him. He may be nice, but he has baggage. Baggage trumps nice almost EVERY TIME Exceptions: widows, you have kids, or take the relationship at 1/4 speed.
3. No job, no school, no date! If he is unemployed and not in school, his ass should be focused on that not on a girl. Move on. Exceptions: independently wealthy with lots of charity, self employed and works a lot.
4. If he is rude to a server or a bartender, get up and leave. Don't explain your behavior just get the fuck out of the booth and walk away. I have done this twice. One turned out to be a wife beater and one shot a dog when he was drunk and got booted out of the Army. This rule is 100% No exceptions
5. Try to not date men who have never been in the military. This may be harder for some depending on location and availability since only about 1% of the men have served. It is not a stead fast rule, but at the very least you should date a few soldiers to at least give yourself a nice comparison point.
6. Don't date men who never work out and don't eat right. If he doesn't take care of himself, he won't take care of you. If your anything like me you probably need a little personal trainer in your man!
7. Don't date men who do drugs. It is stupid and you won't fix him. Exception: You can date a pot smoker if you want to smoke pot. However if he smokes pot and you don't like it, don't date him. It is an asshole move to try to make him stop down the road.
8. Dont date men who wear skinny jeans, beiber hair, drive VW bugs, hates dogs, is racist, refers to women as "bitches", or wears more than one piece of jewelry at a time.
9. Avoid TapOut Shirts, too many tattoos with out meaning, claims of "confirmed kills", "I'm gonna's", and men who combat park for no reason.
I would write more, but I am cutting this short so I can go make out with MrMonday.