As an experienced writer, I can say with certainty that it is difficult to keep track of all of the various aspects of a fiction novel. I've known other writers who use various gimmicks and techniques to remind them of events, story elements, and character progression. I've used index cards pinned to a corkboard above my desk, and a notes file open in a separate tab of my word processor window to keep track of odds and ends in a story. When I first reviewed NewNovelist several years ago when it was in its 1.1 release (the review is no longer online), I said that it was a valuable tool for fiction authors, but wasn't all that it could be. Now in version 2.0, NewNovelist has seen a gigantic overhaul, now including nearly all of the suggestions I'd originally made. Can there be a more useful software tool for fiction writers?
NewNovelist 2.0 review