It’s a common occurrence. Friday afternoon you are sitting at your desk. You should be working, but you feel your attention waning. You feel a wanting to be doing anything other than the work at hand. You convince yourself you are spent. You feel the tank is empty. It has been a tough week filled with decisions, meetings, and drudgery. There are no deadlines looming over your head. You decide to check in with friends about weekend plans and distract yourself with your favorite internet diversions. Now, think back to a Friday afternoon where you had a hard deadline of…