The monthly review is the most important review for achieving your long-term goals. This is an opportunity to assess and alter your direction by changing how you allot your time. It is a chance to re-focus on your most profitable activities. It only requires five minutes, though you can choose to take longer if extra time proves helpful.
Regular monthly reviews let you use Someday/Maybe dates with complete confidence, so you are not tempted to assign hard dates and soft dates to every task.