I am a huge fan of the Getting Things Done organisational system.
But like any system it needs its tweaks.
Weekly Review
For example, jml and I were talking about how gruelling and exhausting a full weekly review is.
I don't enjoy it. Something must be wrong. I dread it.
We concluded that the crucial thing is getting the Inbox to empty a few times a week - if not once a day. I suggested that checking Someday/Maybe and higher-altitude vision/goals stuff could be put in the calendar for a less frequent basis - monthly, quarterly.
I haven't done a full weekly review on a weekly basis for years.
I also suggested that other things could be done more regularly, during braindead slots - checking Waiting For, scanning overall system etc.