No Internet and no TV–participating in the Earth Hour (even if it's just, well, an hour) can be boring unless you plan to sleep (alone or with someone) through it. But you don't have to suffer in order to be eco-friendly. Here are 10 cool things you can do in the dark:

1. Go for Old School illumination. Finally, you'll get to use those candles that you got as gifts. Set up candlelit cocktail parties or have an intimate dinner with your significant other. Just don't light up all sorts of scented candles at the same time. Your house will smell like potpourri gone wrong.

2. Have a soundless dance fest. Stage a silent disco by having your friends come over with their mp3 players. Each of you can listen to your own music and wiggle around without being accused of noise pollution.

Silent disco at Amsterdam in August 2009

3. Camera, lights, action. Create funky artwork through "light painting." Set your camera to long exposure and design effects by using candlelight or other light sources. For more camera tricks, watch the tutorial video below.

4. Dine in pitch-black darkness. Being sightless heightens your sense of taste and smell, promising a whole new eating experience. Keep things safe and wreck-free by using unbreakable utensils like cornstarch-made plates or by just eating off banana leaves with your bare hands.

Night Guide explores eating in the dark.

5. Walk around the house nude. You know you've always wanted to do it and it's the safest time of the year to do so. You can walk on the wild side without anyone else knowing.