My cleaner does not apply the price for laundering men's shirts to women's shirts. The big sign in the window advertising 99-cent shirt laundering is null and void -- they treat a woman's shirt as a "blouse" and will only dry-clean it. I believe this is because women's shirts don't fit in the automatic pressing equipment that they use for men's shirts, so they have to do them by hand.
I'm very fond of my cleaners, but I believe Gloria Allred won a case years ago making it illegal to charge women more for essentially the same service. Goes for haircuts as well.