Cars aside, Henry Ford invented the 5 day, 40 hour workweek. Implemented in 1926, Ford saw that his workers were more efficient and driven if they had time to enjoy life. Prior to this, 6 10-13 hour workdays were the norm.
Sadly, I feel we are creeping back into this work schedule more and more every day as a society. The internet and smart phones means we can always work FOREVER!!
Sorry, that took a dark turn. Yah, Henry Ford!!