A smell, a familiar feeling, another lifetime - or are we just moving in circles?

Hollywood - celebrities of today look to yesterday to find what is glamorous, chic, classy, and stunning. The wheel of fashion has always spun round despite any desperate attempt to keep particular items from resurfacing. A few months ago it would have been going too far to predict The New Kids on the Block would regroup... but that wheel never fails to surprise.
Mr. Postman - The friendly postman's greatest fear was always the vicious dog. Or now, is it the raising gas prices? Is it interesting to see more postmen parking their post-mobiles and walking from house to house, or is that a familiar Leave It To Beaver rerun?

Glass bottles - I enjoy my father's stories of growing up with eight children in the house and every week having the milkman deliver milk on their back step in glass bottles. Is it so far from his reality that I have replaced the plastic gallon of milk in my own fridge with the trendy and oh-so-healthier glass jar?
I can't help but think the more we find out about the world (and perhaps ourselves), the more we look for resolution in the way things
used to be.
What else should we expect to come full (or even half/partial) circle?