OK, here we go: "I'm so old I remember..."

[lambchopp59]

56. Tail-end boomer, nearly but not quite retired

Fed up with some... quite a few... of younger generation sitting on the job playing with their cell phones for hours and getting away with it while working gen-X and seniors are far more productive. Work ethic got terribly lost with many of the millenials somehow.
I'd intimidated quite a few of that ilk from "clock milking" in my area numerous times.
But I digress...
Okay, though I don't recall milk bottle delivery, the leftovers of the industry became start-out furniture for many. Numerous friends dormitory flops I visited in the late 70's early 80's also were furnished with the abandoned metal milk crates stacked and drape decorated, disposed of once supermarket milk became the standard. They made good strong bookshelves for students everywhere. Some had "property of" metal stamp plates no one cared about, often the dairy or distributor had no use for the ones the waxed cardboard cartons didn't fit into anyway.

Both those bottles and metal crates have become rarities only found in antique stores.