My mods (in order of preference).
1. Upgraded sound system (new mp3 / ipod stereo) and the
in-seat subwoofer (Subwoofer inside of a Jeep Wrangler rear seat).
2. 31's and 2 inch lift
3. wet okole seat covers
4. husky floor liners.
5. rocker rails / step bar
My Jeep's a daily driver, so It's great to have more power and big tires, but it's just as nice to have seat covers and great floormats to actually keep it clean when it's time to go to work.