You never know for sure how long you may be stranded out there in the cold. What if there is a storm and even rescue teams can’t reach you? You need food and water. The best snacks for these kinds of situations are high-calorie energy and protein bars. A few can provide more than 2,000 calories without the refined sugar and sodium. A top priority is to stay hydrated. Don’t buy gallons of water because they are too heavy and take up too much space. Instead, get a pack of small water bottles that you can put anywhere in the car. Make sure to carry a few extra refillable bottles just in case.