Factory-manufactured arrows every time? Make it make sense
In the entire TWD series (not including spinoffs), I don't think they showed Daryl making arrows out of wood/sticks ever, except for that one scene where, after they discover Sophia in the barn, Rick leaves to find Hershel and Lori goes to Daryl to ask him to bring them back, we see Daryl whittling down sticks into makeshift arrows for his crossbow.
But after that one scene, he is never seen using those arrows or ever making any more. And even if he goes back to get the arrows already shot into walkers, that really can't amount to much, and definitely not for the entire show.
So how is it that every time he's on screen, he always has a full set of manufactured arrows on him. I know he could always find more when scavenging, but for how long?