An Industrious Grocer in the 1930s Wanted to Make It Easier for His Customers to Buy More. They Just Needed a Push
"There was a time when shoppers could buy only as much as they could carry. And as ubiquitous as shopping carts are today, it initially took some convincing to use them"
https://www.smithsonianmag.com/history/industrious-grocer-1930s-wanted-make-easier-customers-buy-more-just-needed-push-180987633/
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