A timely article in The Guardian recently by Oliver Burkeman, which argued the benefits of scheduling your life.
As a freelancer my days are essentially “free”. But, oh, how stressful that freedom is. The guilt! I have worked out the only way to avoid the constant feeling that I should be doing something – even at night and on weekends – is to schedule my days.
It’s not that I work more. It is just that when I take a break, I can actually relax.

…a good schedule isn’t there to bully you into action against your will; rather, it removes the need to decide what to do. Always having to figure out what to do next can lead to “decision fatigue”, and thus to progressively worse decisions – like staying late at the office to deal with email but then spending that time surfing Facebook slack-jawed.