For those who weren't around back then, K-Marts literally had a blue rotating light (like what you would imagine on top of a really old police car) up on a rolling cart, and it would get parked in an isle to mark where "the blue light special" sale was.
One of the most bizarre feelings is when things that used to be commonplace are explained to the youts like museum pieces.
"Now, this is what we used to call a ditto machine. It used chemicals to make good smelling purple copies of things!"
"These metal rods were called 'rabbit ears'. You needed to position them juuuust right to watch a live broadcast!"
"It was common for people to have a small circular scar, usually somewhere on their arm, from a smallpox inoculation. But if the scar had a spiral pattern, it came from a playing around with a car cigarette lighter!"