I have learned it is wise to be prepared for the inevitable curveballs that life throws us. Each of us has our own way of preparing for predictable issues, such as keeping a stocked first-aid kit handy, having extra replacement light bulbs for the home, keeping an emergency tool kit in our vehicles, or having a spare umbrella thoughtfully tucked away for those random rainy days.
One thing I know for sure is that in darkness there will always be a need for light. For this reason, I personally keep an EcoSurvivor LED Lantern stashed away in a place that is convenient and quickly accessible.