APPLY PARKINSON’S LAW: You are likely to be more efficient if you have less time. If your spouse’s parents call and say they are dropping by in fifteen minutes, no doubt you manage to clean the house super-efficiently. According to Cyril Northcote Parkinson, British historian and author, “Work expands to fill the time available for its completion.” To come at this from a different angle, schedule when you have to start a task—and when you have to finish it.

