It seems the most recent power outages here have been close to sunset. Depending on the weather (snowstorm, thunderstorm, nice day) I sometimes listen to a battery operated radio, read (kerosene lamp), or do crossword puzzles. If its winter, I make sure I have lots of wood inside for the woodstove.
Cooking is no problem as I have a gas (propane) cooking stove. Although it has electronic ignition, it also lights with a match.
Fortunately, power outages here have usually been brief (less than 10 hours).