AKjon
FNG
Extra toilet paper and nice sized bottom wipes.
Extra gloves
Round ceramic rod for touchups on your knife if needed.
Extra fire starter just in case.
Extra ammo & batteries. I'd take 2 headlamps just in case. Two is one, one is none.
I dont mind a little extra TP... it doesnt weigh much and running out one time is far worse than carrying too much everytimeI wouldn’t bring any of this, it’s all dead weight.

Extra ammo depends on your definition of "extra"... i'm not carrying a extra box in my pack, but i'm taking more than the 3-4 rounds that are in the rifle.
I use to carry extra batteries (and still do when weight isnt an issue) but on backpack hunts, I just put fresh batteries in everything before heading out.