I would like to suggest an enhancement to the database to show that an event (report or activity) "will never be done." At this time, the only options are Due (Red) or Completed (Green). There is also a yellow for "expires soon." I would propose another color or symbol (perhaps an X in the circle) that shows that the event was never done. Otherwise, the only way that we can get it off the 'tickler/scheduler' is to delete the event (but then we lose visibility of it completely.