I like to use small branches stuck into the ground- a little goes a long way and I think we all (myself included) have a tendency to want more cover than we need.
Anyway, I also try to keep in mind that out here in Colorado, it does not take much to alter the natural way things are in a permanent way.
With that in mind I try to be considerate of those who also enjoy the back country for its wildness that will follow.
I don't do anything that might ruin their experience- like prune up trees for a stand for example the way some will do- clearing wide shooting lanes and stuff., or leaving fire rings.
Joshua