I have informally (and, of course, wildly unscientifically) asked my programmer co-workers throughout the years if they'd be willing to take a 20% pay cut in ex

I have informally (and, of course, wildly unscientifically) asked my programmer co-workers throughout the years if they'd be willing to take a 20% pay cut in exchange for a 4-day work week. It's not a very popular idea, in my experience, especially among older workers who have a mortgage, some kids, and a couple new cars (people who are maxing out their lifestyle as it is).