Jezebel takes a look into the weird world of one Republican Senate office's dress code policy:
Basically, pantyhose must be worn every day, she was told. Even in the summertime? Oh yes, and "no exceptions." Well, what about pantsuits? "Well, I suppose you can wear them," the supervisor sighed, "But you are going to need to check with the Senator herself whether or not you will need to wear hose under pants, as well. I'm not entirely sure of the Senator's stance on pantsuits at this time."
Normal practice in Democratic offices I'm familiar with is to let staffer go pretty casual when the congress is out of session.