>Coffee! (says Roger)
Coffee is, of course, the saving grace of the stargazer. Without coffee, I would probably be dead on some trail, or, as I often comment as I drive home from an all-night observing session, "There's a bridge abutment out there with my name on it."
Thus, for the sake of survival, one cannot be squeamish about taking one's coffee cold. I have, on occasion, eaten the instant variety with a spoon right out of the jar. Sound overwhelming? Then shoot a spoonful of Coffeemate into your mouth right after it. Mmmmm, Mmmmm, Goooood. Ah, ha, ha. Ah, ha, ha!
In other words, I don't need no hot water for coffee, so I don't need stinking stove. ;-D