First off... Don't unload your shells on to the ground... I do not want unnecessary dirt or moisture on my shells; moisture can damage the shells (or gun if quickly loaded for some reason again), and any dirt you get on the shells can help fowl the chamber.
Typically, I unload, and the shells go into my hunting vest, or into the side panel of my truck. I typically load when turkey hunting as soon as I leave the truck, so my shells have a special spot in the side panel, and they stay there until the next hunt or end of season, and I can grab them in complete darkness.
All my turkey hunting gear is loaded into my truck so that I can grab it in complete darkness...