I feel absolutely naked without them in a treestand........I mean just completely lost.
I use them for everything from scanning for approaching animals, to checking quality of animals , to looking at other wildlife, to evaluating hit game as it runs offor even an arrow on the ground. I use them the whole time while trailing shot animals too.
They are EASILY and I mean EASILY the most used piece of equipment I have.
I've forgotten them once or twice on stand and was beside myself without them.
Once you have a really good pair on a harness on your body you start to realize just how much you really do use them.