When I was on tour, I would keep a jalapeno or some thai peppers in a dish on the dashboard.
If I ever started getting drowsy, I just took a bite off the pepper, and ZING! I was good to go until I could fill up on coffee.
p.s. I put Franks on a lot of stuff (pizza, sandwiches, eggs, etc..), and I also use a lot of Indonesian Sambal when I cook. It's like the rooster sauce in the Thai and Vietnamese restaurants.