The bigger the box, the more junk I would carry.
On my backquiver, I have a small broadhead file in a slot cut in the leather at the overlap seam. Also, a small, traditional leather pouch to carry a spare bowstring, a chunk of beeswax, a flint and steel (butane lighter,) a small candle, a small spare brass compass from marbles and a length of twine.
In my possibles bag slung across my other shoulder, I carry a kidney-shaped Swiss Army surplus canteen and cup, a small titanium alcohol stove, some denatured alcohol in a small cough medicine bottle, a few spare arrowheads and nocks, a stick of hot melt glue, and another butane lighter, along with a few other survival things such as a compass, mini-mag flashlight, first aid items and a small carbide blade sharpener.
I put a cresting line on my arrow at brace height
and glue my wrapped nocking point in place to make it stay where it's supposed to be. I eyeball my arrows and spin them point down to chek straightness and then hand-straighten if necessary.
On my belt is my knife and a tightly folded lightweight surplus poncho with a length of traditional parachute cord. Let's go shootin!
De Oppresso Liber.