"How often have you actually put on your calendar one-hour of time to say, 'I'm going to sit down and think about what work I need to be doing.'" he says. "No, we panic and we look at our (to-do list) and we sort it. Then we just kind of freak out for a while and then the (to-do list) gets larger."
Think, plan, and DO IT. Excellent article on getting stuff done. (And not doing the stuff you don't need to do.)