If traveling by vehicle, pack a winter survival kit, and in the event of getting stranded in the snow, stay with the vehicle. Laura Albert, an industrial engineer at the University of Wisconsin-Madison who studies emergency response and preparedness, recommends packing such a kit with jumper cables, a small shovel, a flashlight, warm clothes, blankets, bottled water and nonperishable snacks, and a bag of sand or cat litter to regain traction on snow or ice.