Amazon Is Selling a $170 Portable Tire Inflator for $100 That Shoppers Are Calling a 'Hefty All-in-One Air Pump'

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If there's one thing I've learned about adulthood it's that it's always best to be prepared—whether by having a spare tire in your trunk or a shovel for snowy winter sidewalks. But having a lesser-thought-of tire inflator in case of emergencies can make the difference between a minor inconvenience and being stuck in the cold for hours. With the holiday season and the winter weather approaching...