I've never answered one of these before. I think my most memorable times of power outages are general, like all of us in the family getting together in the kitchen, lighting candles, and playing card games because we can't sit around and watch TV, or play on the computer. It's always fun, and frequently we say "Let's do this again. Let's plan an outage." But we never do.
Last summer, when it was really hot, we had a power outage. I had to leave my A/C, and thought it would be terrible, without any fans running even. But it was getting dark, and cooler, and we sat in the kitchen with a card game and all the windows and the door open, and it was fine.
One winter, the power went out when it was really cold. My Dad had a fire in the basement, but it didn't keep everything warm forever. I couldn't run my electric heater in my room, so I invited the dog up on my bed to keep me warm. I usually don't do that, and she appreciated it as much as I appreciated the warmth.
The power going out seems to bring my family together.