As a founder and employer of a small team I can tell you that this is more complicated than it may look from the employee side. Consider that health care costs

As a founder and employer of a small team I can tell you that this is more complicated than it may look from the employee side. Consider that health care costs, equipment costs, office space, etc.. don't go down by 20% even though your days/week did. Investing in people who will be _motivated_ is one of the most important things a company does. Besides freelancing, I think your best bet is taking a normal 40-50 hour/wk job, making yourself indispensable (which takes some time) and then negotiating a 4 day week with a commensurate salary cut. I've seen it done, but you really have to sell it to management and convince them your productivity won't decline (don't emphasize your side projects, etc).