The US standard of Living has fallen more than 50% since 40 years ago. (the street)
"On several occasions, I have glibly referred to how it now takes two spouses working to equal the wages of a one-income family of 40 years ago. Unfortunately, that is now an understatement. In fact, Western wages have plummeted so low that a two-income family is now (on average) 15% poorer than a one-income family of 40 years ago."