I remember clotheslines and the rules very well. We lived in San Francisco in a 3rd floor walk-up. The 3 clothes lines were on the pulleys that extended over the back yard. I'll never forget the sinking feeling when the line got jammed and my favorite dress plus the rest of the load was stuck. There was no way to reach them. It took my DH, me and a lot of prayer about an hour to get them unstuck.
I love my dryer and my one story house!