If you're of Baby Boom vintage or younger, you probably take your local supermarket for granted. You walk in, round up the Mr. Clean and Mrs. Butterworth, mince your way through the check stand, and you're done.
But grocery shopping wasn't always like that. The modern supermarket--technically known as a "self-service food store"--is a fairly recent invention.
Prior to World War II, grocery stores were usually very small, narrow affairs, and going shopping amounted to telling a clerk behind a counter exactly what was needed. more...