Smoking is my number 1 no no. Not chance in hell I would be with a girl who smokes. Excessive drinking is also a turn off, especially if they are a messy drunk. By excessive I mean either constantly getting so drunk they pass out or drink a fair amount regularly. I have no issue with drinking in general but when it gets too much, it's just disgusting. If she has a kid, it USED to make me think long and hard about it, but now it's not that big of a deal. Depends on the girl. Fake nails also turns me off.