Being classy is about confidence and elegance when dressing. You will never fail using a skirt. Going to work, it will require a longer skirt that will easily be paired with a beautiful top. Leather skirts are one of the choices of skirts that are suitable for work. The perfect number of skirts depends on opportunity and personal taste. Again, pantyhose requires clothing to a level of conservatism that cannot be done with a skirt.
The first thing to consider when trying to find the right clothes to work for is a leather skirt. Formal dresses may still be used for women, but you might be better off with a long cocktail skirt or a small black dress that you can access to look more formal, if necessary. The perfect number of skirts depends on opportunity and personal taste.