Your favourite rules of photography

There are many ways to learn photography - one of the easiest ways is to learn a set of 'rules' that work like a shortcut toward getting awesome photos. You'll have heard of a lot of them before; there's the Rule of Thirds, for example, the golden mean, or simpler rules, too: Such as "get your photos in focus" and all the rules-of-thumb to do with equivalent exposures etc.

Do you know of any other “rules” for photography? Which rules to you stick to most of the times, and what rules do you love to break for best effect? Leave a comment below!