I wear an 11 US, 42 Euro. The one shoe store in my town stops at 10. The next town, 50 miles away, has a wonderful selection of 11 in a lot of cute styles. (Budding shoe fetishist here.

) Anything bigger than 11 is very hard to find.
Yesterday I was talking to a male friend. He wears 12B men's (14 women's) and has to pay a lot more with a lot less selection to get narrow shoes.
Paying more for a women's haircut makes some sense. The process of cutting it is much more complicated than the rather straight-forward man's cut.
I don't understand the difference for dry cleaning, though. If they are pressing shirts, etc., it makes some sense because of all the darts and gathers in women's clothes. (I remember once when I was ironing my shirts I thought I'd be nice and iron my wife's jumper. It took me longer to do that then a week's worth of men's shirts.)
Speciatlty sizes and styles cost more. But GG women are getting bigger all the time. Just wait - size 14s will be widely available before you know it.

- Kate