Re: Milk in Bags?
"[...] he'd be back by eight thirty with an electric milk float jammed full of crates of noisily clanking empty bottles [...]"
In England in the 1950s our Co-op milk float was horse-drawn. It is said that the driver could just busy himself with the bottles - and the horse would automatically keep the float moving to convenient points in their regular round.
Norman Wisdom's "The Early Bird" in 1965 indicates that such floats were possibly still in use.
NSFW? The obvious clip for "The Fastest Milkman in the West" with carts from an earlier era.