Also, it's much easier to start work in the morning if you have an unfinished task to complete. It's easier to get into the flow if you can dive right into something rather than having to start a new task from scratch. Even though it feels nice to have things wrapped up nicely before going home, that's often counter productive.
"I had learned already never to empty the well of my writing, but always to stop when there was still something there in the deep part of the well, and let it refill at night from the springs that fed it."