Return of the milkman? Pushing packaging out of the U.S. delivery process

What goes around comes around. Nice to see. Now, how do we get rid of that 'Sargasso Sea' of plastics floating in the mid-Pacific? Attempts have failed. Sea creatures (many of which we eat) are absorbing the stuff. The can't do that with reuseables.

When I was a boy milk was delivered in a horse and cart. The milk was in one pint bottles--returnable of course! Lucky was the house holder outside whose house the horse left a heap of manure---a bonus for the vegetable garden! Nothing much wasted in those days!