What I want is to work less. I currently work slightly less than 40 hours a week, and have a few weeks of vacation. Ideally I would like to work 4 or fewer days per week and have 5+ weeks of vacation time per year. I have attempted to negotiate this with my current employer as well as potential ones. I have never been successful. Everyone wants me to waste my life away sitting at a desk in their office.
TL;DR: How do I successfully negotiate more time off instead of more money?