SciFiChick has 13 Things I Learned From Watching Star Wars. I'm afraid number 7 - Some hairstyles will never catch on [referring to Leia's buns] - is incorrect.
At school Natalie Butler turned up with hair like that so she could play Star Wars with us (us == the boys). And I have a feeling Ruth Evans did too. In fact years later Natalie Butler's mom complained to me that it took ages to do her hair like that.