Mini Dresses were so scandalous back then. Yep, I wore them, it was just fashion. Had mini skirts too. The trip was the nylons and garter belt right before pantyhose. Maybe pantyhose were out because otherwise you could not wear the mini-skirts.
School register - after it was taken someone would be assigned the very important and much coveted job of delivering it to the head's office :) yes, and I had one for my stuffed animal classroom at home!