Everclear, diluted with a good amount of water and a little Tang, instant lemonade, or other powder drink mix can make a nice nightcap.
Never drink it with out diluting, even for doing the Gene Simmons thing. It will definitely damage cells on the inside of your mouth.
I would never use it as a fuel except in an emergency, it's too expensive in the US.
I find that if I'm with a group and I drink enough of it, it makes me popular and attractive to the opposite sex:-)