OK, lets see where should you start with your "NEW" TJ.
1st= if you haven't done it, Check/change all the fluids. All of em. water,oil, brake. Don't mess with the a/c if it is working. Might not be a bad idea to back flush you heater core.
2nd= check all the u-joints Axles & drive shafts
3rd= check all the bushing and steering componants
4th= Take the rubber baby buggy bumpers off the front bumper
5th= put 1"X1"x2" square tubing under the seat frame to get you up a little bit for better driving
6th= Put a 6" wide dark sun screen across the top of your windshield to help with sun in the early morning and late evening.
7th= take the tow bar off the front if this is going to be your daily driver.
That will keep you busy for a few days.
one more thing, with 02's check you head for cracks between 3 &4 cylinder. easy way is just remove the oil filler cap and look right there for radiator fluid.
This is a possible problem with 00's-02's engine. lot for more info on this forum.