Okay, here's one that's more Seinfeld-esque, and please forgive me if I seem to come off as sexist or offensive...
But have you ever notice that it seems like the less attractive a woman is, the more vain she is? I mean, vanity seems to be that one deadly sin that runs rampant in almost all women (likewise, sloth seems to be the run that runs rampant in almost all men), but it just strikes me as curious that it seems like women who... let's just say aren't exactly glamorous or ravishing, are the ones who are more prone to commenting on themselves on how adorable, or how pretty, or how hot they are. Granted of course, I know there are always the divas who are the ones who are all glitz-and-glamor, and they have that mentality about themselves, but it seems like more and more, women whom the most superficial of superficial men would consider have been living under rocks all their lives seem to think of themselves as the ultimate sex kittens anymore. Maybe it's got something to do with oppression, y'know? Society has been forcing us to worship these size 0, skin-and-bone, skantily-clad, wear-too-much-makeup, do-crazy-things-with-their-hair model types for so long, that normal women are finally saying enough is enough, and are passing themselves off as knock-outs to everybody.
Just an observation.