Rule 1) You must write.
Rule 2) You must finish what you start.
Rule 3) You must refrain from rewriting, except to editorial order.
Rule4) You must put your story on the market.
Rule 5) You must keep it on the matket until it has sold.
Science fiction author Robert J. Sawyer added his own sixth rule, which deserves to be added to the original five:
Rule 6) Start working on something else.