My Mom still uses a clothes line - she lives in Germany and she has broken the "Monday" rule because it's more about the weather these days than the day. But I believe that the other rules are still followed. (I'm actually glad about the undies in the middle. Those might scare young children.)
I have tried using the line a few years ago - being in CA and all, but the dust in the country is awful, the birds have no manners, and by the time I got the clothes off, I they were as dry as a board. NO thanks, I take Bounce sheets and my dryer any day.