When you buy through links on this page, HuffPost may earn a commission that helps support our journalism. Every product is handpicked by the HuffPost Shopping team, and prices and availability are subject to change. One place that heat can make itself known? Your car. Though it’s best to park your car in the shade rather than direct sunlight to keep it cool, sometimes parking or driving for long periods in the sun is unavoidable. Luckily, there is one simple addition you can buy that’s