Washer fluid is like $2 and obviously can do yourself. Make sure you actually have antifreeze in your radiator. Not sure if they only use water if it never freezes there. If it's just water, drain it and replace with 50/50 antifreeze/water. Good set of wiper blades and if you want upgrade to better headlight bulbs (quick and easy). Only things I can think of considering you already have a lifted JK. You'll be good to go.
Once you get here check out trails in the area here http://www.traildamage.com/
and also check the Colorado forum on this site for runs. I went on my first last week and had a great time.