So, what types of channels do you find most interesting for airport / aircraft listening?
For me, GA (general aviation) airports are more interesting than the big commercial ones. Cessna's, Pipers, Mooneys, experimentals, smaller jets, etc.
I'm not familiar with your area, but on airnav.com I see that there might be some GA airports near you:
KOSU
KTZR
KLHO
KDLZ
Although the traffic may seem the same, there is something about looking out your window and seeing the Cessna you are listening to. Even better is to grab the navigational charts and see if you can follow the track as the pilot reads out what waypoints he is over etc.
For even more fun, visit a GA airport and check out the visitor center if they have one. Listen to the tower freq, and maybe some small binoculars, and you might be surprised if you suddenly want to sign up for an introductory demo-ride - even if it is nothing more than just flying the pattern a few times.
Once you are shoulder-to-shoulder with another pilot in a small aircraft, those routine comms won't be routine any longer!
If you are an aircraft monitoring enthusiast, there is nothing like actually going up shoulder-to-shoulder - at least once!