This example is an illustration of a scenario where it is not possible to move around on location to adjust composition and capture the image you are after. Normally I would have moved closer and used a shorter focal length to capture the image below without the power cables. Unfortunately, I was standing on the edge of a sheer 50m cliff of a quarry so, frustratingly, I could not move further forward to achieve an angle with the power cables out of the way.
As I really liked the original image with the exception of the obtrusive power cables, I decided to remove these cables in Photoshop using the clone tool. Due to the blur and bokeh of the distant hills, the cloning proved fairly straightforward, although I had to ensure to match patterns in the hillside and avoid duplicating obvious elements, by careful sampling and regular resampling of the area to clone from.
I am glad I decided to remove the power cables, as I have since sold enlargements of this image. I am absolutely sure that I would not have sold enlargements of the original.