I removed all the carpet out of my mine and sprayed the entire interior with LINE-X. Then I threw those thick rubberized slush mats that Jeep makes in the front, rear, and cargo area. Definitely worth doing and I would highly recommend it! Makes it so easy to hose out when needed as well.
2009 4 Door 4wd Wrangler, 6 spd
32" Mud Terrain tires, Line-X interior,
Neoprene seat covers