I know you probably have one--a to-do list with more things than you can accomplish in a day. Or, you're so scared of how long your to-do list might be that you keep it in your head. The advantage is that you don't have to see how long your list might be and how overwhelming your schedule is. The disadvantage is that you forget things.
The following is a video of an interview with work/life balance coach Kirsten Mahoney, owner of Insight Out Life Coaching. I met her recently and she's as down-to-earth and sweet as she appears on the segment. I love how she emphasizes saying no--both to others and to yourself. As a self-employed person it's so common to feel like you have to do it all and you have to do it all today. But do you really?
Serenity means doing what you have to today, and letting go of that which you don't. How you define "have to" is a question for another post--one that Kirsten herself may very well contribute.