A wise man once said "All things come in threes". The same is true in photography! A friend told me that when taking a picture, be sure to have it in thirds. Meaning if you're taking a landscape photo, have the sky, the horizon and the land beneath it all in approximate thirds to fill the photo. It really works! Other than that, I just shoot at anything I think would look cool in picture form! Something has to turn out nice once in a while!