Heinlein's Rules of Writing

Timeless. My daily goals are not always met, but I'm trying, every day. 

Heinlein's Rules:

1. You must write. 
2. You must finish what you write. 
3. You must refrain from rewriting, except to editorial order. 
4. You must put the work on the market. 
5. You must keep the work on the market until it is sold.