Driver side - auxilary signal cable for tow hitch and a bag of assorted bungee straps.
Passenger side - roof rail covers (previous owner kept them in there... I never bothered to take them out.
I was attempting to fit a mini-first aid kit back there, but the one I have is about an inch too large in any given direction to fit in either compartment.
~ ~ ~
Van Eyes - slightly trimmed, Sylvania SilverStar ULTRA head lamps, Red (port) & green (starboard) 5 LED 'headlight horn' lights, PIAA silicone windshield wipers, K&N Filtercharger (in stock air box), MacNeil WeatherFlectors, Assorted cargo nets from previous vehicles, Optima red-top battery, Transmission Interceptor, 20 LED 'light tower' turn signals & brake lights, 18W PIAA W2 running lights, Trooper skid plates, Black Luverne step bars w/Tone's custom brackets