Priorities, that's the key.
You may have heard the story about the professor who brought a glass jar into class one day. He took some large rocks out of a bag and put them in the jar, asking the class, "Is the jar full?"
Since no more of those rocks could fit in the jar, the class nodded yes. The professor shook his head no, and brought out another bag. In this bag were pebbles, which he dropped into the jar, filling the spaces between the big rocks. Again he asked, "Is the jar full?"
Again, the class said yes. Again, the professor shook his head no. He brought out another bag, and sifted sand into the jar. When he had finished, he asked the class again. This time, they looked at each other, not quite sure, but still about half of them nodded yes.
The professor smiled, picked up a glass of water, and filled the jar. "NOW," he said, "it is full."
The application given for this story is that we must put the most important things (large rocks) in the schedule FIRST, or they will be crowded out by the pebbles or sand. An additional application was that, like the water, there are some things that can always be fitted in even when life seems full.
