I just remember a lot of cows. So many cows in those giant pens that they turned into a giant, brownish blur. We kept the windows up for most of the drive.
We got stuck for some construction at some point, not far from the OK border, and while it was hot, I did kind of enjoy standing on the side of the road, just looking out over the vast flatness and feeling that kind of heat, which I sometimes actually miss here in WA.
Now, Montana! There's a place I'll happily drive for the wide open spaces. It just felt so huge and open ... when I was moving here from Wisconsin, we stopped near Missoula for the night, and as we walked around, it was like I totally got the whole "Big Sky Country" thing. Gorgeous. Just loved it. (Although the eastern half of the state isn't quite as nifty as the western half.)
Dang, I really want to take a good road trip again. Hopefully next summer when I have a new (well, new to me) car, I can do that - take a week and just go. My car makes just enough noise right now on normal drives that it makes me nervous enough not to want to take it anywhere really far.
(and my car place did tell me something major in regards to the steering looks like it's near its last legs, so I just want it to last me until late fall now.)