We're in Cheyenne, Wyo., about 1,250 miles into our trip, averaging 41 miles a gallon in our Toyota Prius.
You've heard about people going from big cars to smaller ones? Well, some are going even further.
Scooter sales are way up.
We visited one shop in Salt Lake City that's benefiting.
Why? The reason is pretty simple. Scooters average about 85 miles a gallon, and usually cost between $2,000 and $5,000.
Then, there's that feeling you get when you drive by gas stations!
"It's actually a huge relief," one scooter owner told me, "because, before, you just got sort of a sick feeling, like, 'I'm going to have to go there again. I'm enslaved to gasoline.' But now, you fill (a scooter) up, and you go forever."
Scooter shop owner Pedro Calderon says, "The scooter has become like a second car for the American family lately. They've been selling cars to buy scooters. And of course, the reason is obvious: They want to save some money."
There's even a scooter that runs entirely on electricity, but that runs about 11 grand.
You can take scooters on the highway, but most people don't feel comfortable doing that. It's more of a city or neighborhood vehicle.