[SvilleKid]

Step bars (Nerf bars) sure make it easier to get in and out, especially if you have older parents that can't step as high as they used to. Ditto on the K&N filter, and getting rid of the stock exhaust (unless the truck is brand new, and the warranty is in force). Carpet floor mats, if it lacks mats. Road salt isn't an issue in the south, but I use "spray-can" undercoating on all my vehicles, which is cheaper than the dealer applied product, and just as good (just make sure underside is clean and dry before you spray.) If not a new truck, you might consider a stereo and speaker update, including a head unit with multiple input ports, including USB.