I totally agree with Sarah Michelle Gellar. How amazing were her clothes in Cruel Intentions.

In Buffy the Vampire Slayer she used to wear clothes that aided her in running around very fast and killing vampires, so she was not often seen in a skirt and heels.

There was one episode though which always makes me laugh when Buffy is trying to get a bank loan and is dressed in a conservative but very lovely pencil skirt. A vampire turns up of course and she instinctively tries to kick it. She can't move though. She looks down at herself, and remembering what she is wearing, she curses, "stupid skirt!" I love that!