By Chadd Cripet, Idaho Statesman
 
Jarid Davis was working in a ski shop in Whitefish, Mont., when he started using Christmas light ropes to warm himself – first by holding them, then by stringing them around his neck.

“I was pretty impressed,” he said. “I thought, ‘Wow, someone should do something like that.'”

That someone is South Lake Tahoe resident Davis, who is selling the Kozy Core – a heated necklace designed to warm the central part of the body. It runs off a power bank like the ones many people use to charge their phones.

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