I drove 400 miles a night for a living, and when I would get sleepy, I would make the air seat rock back and forth and place my legs in a way that it would make charlie horses in my thighs. At the same time I would pull really hard on the steering wheel too. It was a pretty good work out, and it would wake me up. Or I would get out of the truck for a couple of minutes on the side of the road and run in place until I had my blood pumping a bit faster than sitting still. I had a timed load, and I had a very short window to get it back to the center. This mostly happened when I first started the runs. Then I started listening to XM radio to the stations that read books. I wanted to listen each night what would happen in the next sequel , so I didn't get sleepy. They read a lot of Louis L'Amour books and detective stories. I had a couple of drops, and I hated to get out of the truck to miss any part of the stories they were reading.