I know this was yesterday, but did you participate? I did, even though I wasn't home, but all the lights were out at home and in the hotel room, and I felt like I was doing something significant. We didn't have any candles, but the feeling was amazing.
In any case, I believe we should all take little steps toward helping our Earth stay alive every day. Things like taking the stairs instead of the elevator (unless you live in a skyscraper, of course), or using public transport when you can, switching your lights off every evening and recycling are little things we can all try to do in our day-to-day life.
So, did you participate? Share your stories!