This photo from World War II shows women (all wearing dresses!) at a meat counter. The sign on the meat case in the foreground says: "Save waste fats for explosives." Meat along with sugar, butter, and other staples were rationed during wartime and NOTHING was thrown away.
World War II was a time when Americans banded together saving anything for use in the war effort. It was also the time when women stepped up to the challenge and worked in war plants by night while running a household during the day often with precious little sleep.