> Labor-saving devices are rarely that — instead labor is shifted, from one department to another, from the body to the brain, or standards are raised — when laundry is done by a machine, its operator must ensure that all clothing is bright, soft, sweet smelling and stain-free

What? The washing machine was so effective at saving labor that it's widely considered a major driver of gender equality: https://en.wikipedia.org/wiki/Washing_machine