For years I was doing just fine listening to a local, commercial free radio station that played international music. One day, the station vanished and in its place - just static.
I don't drive too often but when I do its for long rides, rides where I get so tired I worry about nodding out - BAD! I kept buying comedy CDs on Itunes which would keep me awake but, like the songs, I could get whole routines stuck in my head if I listened to them a few times. Plus, at $9.99 each, they really added up.
The solution: XM Radio! I LOVE the idea of a constant, fresh, stream of music and comedy. It is literally refreshing. I tried it out for the first time today and it was great, it may not be life changing but it improves the ride.