Originally Posted by NFLD Stephen
That's a really good question - but it would take a very long entry to list them all. Browse through any photography technique book, or a site such as this to get some idea.
The thing is, rules are designed to get you to conform to a certain standard of photography and that standard can be quite different depending on what artistic aesthetic you are striving for. I find the best way to approach this is to take or find a picture that you previously took that differs strikingly from the type of picture you are most comfortable taking. I think we all take certain assumptions and expectations with us when we go to photograph - to break with those is most certainly breaking the rules, even if they are only your rules.