"It has been estimated that American families could increase the purchasing power of their incomes by 25 percent, if their buying methods were as well developed as America's methods of production. That means that an income of $80.00 a week, spent wisely and well, can buy you as many goods and services as an income of $100.00, spent heedlessly. Perhaps the figure, 25%, is a bit high, but there is absolutely no question that you can save 15% to 20% by wise and thoughtful shopping. And in times of high prices, a saving of that proportion can mean a solid difference in your standard of living."
Good Reading Rack Service, 1953