How do you keep yourself awake while you're falling asleep?

Either drink tea and listen to music, or just give up and go to sleep anyway.

I usually drink tea, listen to music or just text.

Listen to music/go on the computer to occupy myself

I splash cold water onto my face and that seems to do the trick.

open the window and get some cold air in my room

A can of monster :)

Play temple run.

lol then I get myself so worked up I cant sleep at all... poor little ginger explorer -crys for him

Coke or something usually does it
Coca cola, before anyone goes for the drugs :P
But water is usually a good idea, getting your face wet is pretty good