My experience: | % of time | % of time | % of time mode | working on | cleaning up | wasted on | my own stuff | others' crap | other B.S. --------------+--------------+--------------+------------ a. 9 to 5 | 10 | 40 | 50 b. consulting | 30 | 40 | 30 c. start-up | 100 | 0 | 0 The winner: c.
Most 9 to 5s are about face time (or butt-in-chair time) and consulting is about billable hours. If you can do your job more efficiently (better job done in less time), a 9 to 5 says you still have to be at work looking busy until a certain time and in consulting, getting the job done faster can result in less money earned (if you're charging by the hour).
In your own start-up, finding more efficient ways to get things done benefits you directly. You now have more time to complete the next task. The sooner you finish, the better.