Light is what this business is all about. Get good light and you'll get a good image everytime. I've often looked at images where I've thought "How did the photographer get that image?". The truth is of course, the person waited for a long time to get the right light. By this I mean dramatic skies, sidelighting, alpen glow etc etc. You just don't turn up at a location (well normally you don't), set up your tripod , take a picture and go home again. Just doesn't happen. Well, it never happens to me.
In the image above I was sat opposite just looking at the flat light. 30 minutes later the sun suddenly came out and the light reflected off the grass onto the water. Quite amazing really. I wasn't setup on a tripod but luckily I had the camera in my hand. I wasn't worried about camera shake because there was plenty of light. Patience is a virtue.