New to acura and the TL

[JWTL]

I just recently bought a 2004 Acura TL. The car is the Mineral Grey. I am new to the Acura and am not sure how easy these cars are to mod. The car is completely stock. It has only 38,253 miles on it. Leather interior but no Navigation. Power everything (Seats, Windows, Mirrors Etc....) Sunroof with Weathertech shield.

What are some good areas to start modding? I am not looking to drag race or anything like that I wouldn't mind increasing fuel mileage and maybe adding a little more power but nothing crazy. I had a mustang that I did all that with. I am more into making the car look good and perform well on a daily basis for driving to and from work and maybe hitting up the local car show every now and then.

I live in Northern Virginia and drive the car daily to and from work. So most mods should keep that in mind. I want to increase the cars all around performance. Any help would be greatly appreciated.