Lessons learned but then forgotten don't do anyone any good, so take time as the week begins to revisit the failures and successes of your year thus far -- both for your workplace as a whole and for your own career. Share your findings to look particularly sharp. Then you may experience a certain lack of clarity around Wednesday and Thursday. If you can avoid detail-heavy tasks, do so; meanwhile, exercise can help you get centered and regain some focus. From Friday through the weekend, pay extra attention to authority figures. You'll pick up on a cue that others have yet to notice.