There's a set of complementary commercials for a particular woman's hair care product that I think are quite clever. The product, used in the shower, is purported to enrich and enliven hair color. One is for brunettes, the other for blonds.
Blonds Strike Back
Brunettes, after extolling the efficacy of the product: "Blonds, we guess that you'll have to wear even shorter skirts now."
In response, the Blonds, after the ad for their product: "Brunettes, at least your mom thinks you are pretty."