Determine remaining daylight on your hand. Use this simple trick to measure the remaining daylight without a watch. Count the finger widths between the sun and the horizon. Each finger is equivalent to 15 minutes, with each hand totaling an hour.
Chewing Gum + AA Battery = Fire Starter - Tear a Foil-Backed Wrapper Into an Hourglass Shape. Touch the Foil to the Positive and Negative Battery Terminals. The Electrical Current will Cause the Wrapper to Ignite and Light a Candle or Tinder.