As a freelancer, I understand where some of the comments "As a freelancer this won't work" are coming from. However, the last year I've flipped my freelancing model where I offer a more productized service with a clearly defined scope and set price. Instead of doing design work for $XXX/h, I'll deliver A,B,C within Timeframe Y, for Price $XXXX. With clearly defined services, I've actually been working for the last 12 months using a similar model, usually constraining myself to 4h/day with weekends off. My productivity + revenue have increased dramatically. Productizing your service makes it easier to market and generate leads, while it gives you the flexibility to work the way you want and actually free up time. Awesome post OP!