How to make highway driving more bearable....

I don't think many could argue that highway driving on the prairies is soooooooo booooooriiiiiing! Not that the prairies aren't beautiful in their own way, but wheat field after wheat field is dull dull dull! So, how does one make the journey more bearable? Here are some ideas that have worked for me.....

1. Have a passenger. Not only can they talk to you to keep you entertained but in case of an emergency it is always helpful to have an extra pair of hands.
2. Play loud music. Doesn't matter what kind (as long as all people in the car agree or can compromise)... just play it loud and sing along :)
3. Play a book on tape. Careful with this one as it can backfire. I have driven one of the most boring drives known to mankind (Lethbridge to Moose Jaw) with a book on tape that was even more boring than the scenery. But a good, entertaining book will get you to your destination very quickly
4. Play a comedy CD. Is similar to the book on tape idea but is more likely to be entertaining. The biggest drawback is that it is likely to be short, usually less than one hour, which won't get you far on the prairies.
5. Daydream. Seriously this one works and requires no investment at all. Unfortunately, this is tough to do with a passenger as they might think you are ignoring them. If you do this I advise you make sure you are wide awake so you don't actually drift off the road.
6. Listen to the radio. This one is Valerie's idea but in my experience it only works near major cities. Once you are in true prairie land there are long stretches with very few stations to select from or maybe no radio at all.

Any other highway driving tips out there? :)