I don't know how you like to ride, but for me, the promise of eating something yummy when I stop is a pretty strong motivation. Whether that's because I've stopped somewhere to eat food someone else made or I'm planning to cook a meal myself, you can bet that I'm probably thinking about what that food is going to taste like more than a little by the time I'm parking.
But that can be somewhat difficult if you're going cross country and camping along the way.
