I recently noticed an interesting phenomenon.
I actually get hit on more when I look crappy than when I look good.
Men being the visual creatures they are, this makes no sense.
But fear not, I have a theory.
I think guys divide women into three categories, "hot," "mediocre," and "ewwww" (or, in guy terms, "girls I'd have sex with," "girls I'd have sex with," and "girls I'd have sex with.") Now when I'm all dressed up and pretty, I might, for example, be at the lower end of "hot." Cute, but not accident-causingly gorgeous. Whereas when I'm looking my worst, I might be somewhere near the upper end of "mediocre."
The guys decide which category of woman they think they can get and, in turn, aim as high as they can in that category. Thus when I'm at the top of "mediocre," any man who thinks he is in the mediocre range will hit on me. Whereas at the bottom of "hot?" It's far less likely, for guys that think they can get "hot" will aim for the very top of "hot." The "hottest", if you will.
I think it's like tax brackets. Sometimes you move up to the bottom of the next tax bracket, and you actually end up with less money than when you started.