When the lights suddenly flicker and you find yourself shrouded in darkness, a lighter can be a wonderful thing. Always have a few of these close at hand in case the power goes out or another emergency situation arises—you'll be grateful that they're there. A lighter can help you start a fire, illuminate a few candles, or navigate the dark. Purchase a pack of three or more so you'll have extras available whenever you need them. Available on Amazon; $8 for 6.