At the risk of potentialy offending many posters, I would recommend skipping games every so often. My "advice" was generally more accurate--and civil--when I only listened to my son's account of the games and his at-bats. They are also remarkably honest with their self-analysis. It also sends a nice message that the world does NOT revolve around his baseball schedule, contrary to popular belief. Trust me, you don't need to be there; they will generally do just fine without you.
Granted, not that easy to do.