I built a simple shelf above the wheel well on one side. It's about the handiest thing I ever did. Works for bows, bird guns, fishing poles, groceries, you name it it works.
I also built a self going across the bed sitting on the bed rails up near the sliding rear window and that also is super handy.
Also carpeted a sheet of plywood to lay in the bed of the truck. Makes it nice and comfy to climb into to load the truck with gear and also makes a soft place for setting stuff that you don't want to slide around and get scratched up.
i'll try and take some pics tonight and get them posted here tommorrow.