A Torges Tree Seat is pretty useful, and can be made for maybe $10. Just get a good butt pad and find a tree that doesnt have old barbed wire sticking out of it (thats just what i heard, of course...), and sit still if you dont have much cover. I just lay my head back against the tree and listen, lock my eyes on different spots for a minute so Im not moving too much, and my peripheral vision can catch movement pretty well. Havent killed any deer yet but i've been getting closer.