The ONLY time I use cropping is if I want to take a small portion of the image say just the face, etc, and do some photoshop on it. I have maybe 1 or 2 images I have done any cropping on. I really prefer to shoot as I intended it to be seen...
Only sometimes if its needed.
I generally don't. I prefer to get it in the way I want it with the camera.
Sometimes it is impossible as I've repositioned myself a thousand different ways and I still end up seeing that painful branch or window in the background.
There gets a point where you have to say to yourself,
"deal with it later".