What do you do when the electricity goes out?

[MRKs]

I'm from Argentina, and in Summer the power outage are pretty common, the average it's around 4hs but when i was a child there were several cases the lights go out for days. I remember i played pokemon cards with friends and candles :P
Now I have a PSP, so i just play to PSP until the battery goes out or the lights are on again. I also usually sleep when this happen hoping to wake up and find my electricity back :D