It happens to the best of us. You realize that your car keyfob battery is low, but you figure you have plenty of time left before it dies, and usually you do. But inevitably, it will run out of power ...

Headed out for a weekend in the wild or gearing up for a long-haul road trip? A good emergency kit is the difference between "ugh, this sucks" and "no big deal, I got this." Flat tires, dead batteries ...