What are those metal snowflake-looking contraptions that many people are carrying around? Here's everything you need to know ...

These adorable doodads fit in the palm of your hands, heat up fast and last for hours — snag a pair while they're on sale.

Promising review: "GET ONE!! It’s such a money saver!! I buy a 3-pound can of Costco’s coffee and use it to fill it up. I’ve ...