It's a cold, windy, and slushy winter day, so of course that's when your car decides it doesn't want to operate properly. Are you prepared for a flat tire or a dead battery? How about a loose screw or a blown fuse? Now is a good time to make sure you've got the tools you'll need to deal with minor car troubles. We've compiled this list of the best tools and supplies you'll want to keep in your trunk.