I really enjoyed Clay Shirky's recent piece on requiring his students to put technology away in class. While I'm not sure his decision was correct, the essay nicely describes the sins of multitasking. This is a thing for me. I believe that nobody multitasks effectively. Splitting your attention between various masters just means you will serve none of them very well. The elephant metaphor explains it far better than I could. Save this one and read it over a nice beverage, while not doing four other things.