1. Take a walk, bike ride, or exercise at your desk. Your neck, back, and posture will be surprised, but will thank you. A power outage is probably a sign telling you to get off your chair and out into the open. One of my favorite wellness websites, WebMD has a great article discussing various office exercises you can do. Just be careful doing these in the dark.
    2. Take a nap. Your brain needs a break. If you are at home, no one will care. If you are at work, the boss won’t be able to see you in the dark. Just don’t snore.
    3. Play a game of solitaire with REAL cards. Dogmelon has a list of about fifty variations on solitaire, complete with rules and graphical explanations.
    4. Socialize. The computers may not work but phone lines do. Pick up the phone and call a loved one.
    5. Read a REAL book. Candles or flashlights can aid this effort. And contrary to popular belief, you won’t do permanent damage to your eyes.
    6. Raid the refrigerator. The food might go bad. Use it or lose it! How long can food last? Find out at the National Center for Home Food Preservation.
    7. Sit by a window and write a letter. It’s like an email only you use a PEN or PENCIL and PAPER and it’s a bit more formal. Someone may appreciate it.
    8. Make a shopping list. Do a stock-check around the house. Let’s see, batteries, flashlight, a deck of cards, a board game or two, candles, pencil, paper, more food
    9. Drive to the nearest home improvement center that has electricity. Buy a generator.
    10. Grab a pencil and paper and get in your car for a mini-expedition. Map out Wi-Fi hot spots outside your local area where the power might be on when yours is off. (You might also check out, 5 Wi-Fi Hotspot Finders to Find Wi-Fi Spots Near You.) When the power comes back on check out Zeemaps, a free online mapping service that makes use of Google Maps. A simple email/password registration allows you to save and share your maps.

Article credit: http://www.makeuseof.com/tag/top-10-activities-to-do-when-theres-a-power-outage/