Develop a clean line of action for your leading character

The more subtle and elegant you are in hiding your plot points, the better you are as a writer.

Now, what is it which makes a scene interesting? If you see a man coming through a doorway, it means nothing. If you see him coming through a window - that is at once interesting.

Ever notice how these European trains always smell of eau de cologne and hard boiled eggs?

If you have a problem with the third act, the real problem is in the first act.

Make subtlety obvious.

A bad play folds and is forgotten, but in pictures we don't bury our dead. When you think it's out of your system, your daughter sees it on television and says, My father is an idiot.