Can we always have 3 day weekends?

It is my belief that all weekends should be 3 day, and all work weeks should be 4 days. As a society, in general we work too much and relax too little. An extra day of relaxation is most definitely needed to assuage the misery of the common work day. We would truly be happier and far more productive in our work and in our private lives. To whom can I pitch this idea?