WOW!!!!
Talk about getting a response to my question.
I see this has been pretty well thought out by several of you.
If you need a volunteer to help with the Texas Interstates, I'd be happy to do them.
I love a good challenge.
I'll also be discussing this subject with the GeoCachers manning the Booth at the Dallas EXPO this weekend.
Once again, thanks for the feedback.
Nut-N'Honey