Hard to stay awake when you are the only person awake and dead tired. You should be aware of the warning signs that you are that tired and pull over for awhile. Better to get home later than not at all. Stopping and splashing water on the face, run around the vehicle, that can work for a little while. Having something to munch on, Sunflower seeds do work great. Pluck a few nose hairs, if you got them, every few minutes will wake you up also. I am not sold on the energy shots ect... but hot coffee does work, as does the horribly unheatlthy cigarette. Music seems to do more to put you to sleep, if you have sattlelite radio I do better listening to a news channel that keeps the mind working. Sticking your head out the window after splashing on some water helps. Only real cure though is to get some sleep.