I have to draw some lines and make some tough choices about what fulfills me to ensure I don't spend my days working on an app, but instead am building an app that's the cornerstone of a successful business. I spent four months last year working on Boutique and Bodega, and while I didn't intend to make money from them, I really appreciate the people who sponsor my open source work. This year I'll use one of my days off to do the personal and work planning I mentioned earlier, maybe scratch a creative itch, prototype an idea I have, or spend the day with family and friends if I'm feeling particularly social.