Dramatic weather seems to really help inspire creativity, and I find when things are looking a little bleak, when it's getting windy, when the clouds are coming in, that's the best time to stay a little longer and see what you can get. In terms of landscapes, it's the clouds and the layered look of them as they blow in that really adds a nice element to an image. I think it also helps when the rest of the scenery is mountains, forests, lakes, and rivers.
