Five essential items to keep in your car during winter.
Coleman 5-in-1 Survival Whistle
An affordable and versatile lifesaver, the Coleman 5-in-1 tool has a waterproof match container, a signal mirror that should get the attention of any passersby, a whistle, a flint fire-starter (in case things get really desperate), and a compass, in the event there’s no signal to use your iPhone’s GPS maps. Just remember: You need to actually know how to use a compass for this feature to be of any use. $4.99, coleman.com