Cuppow is a silicone drinking lid that converts any wide-mouthed canning jar into a travel mug. Canning jars are sturdy, heat-resistant, easy to clean, and cheap, but their wide openings don’t make them a travel-friendly mug. Simply replace the seal with the Cuppow, screw the ring back on, and you have a eco-friendly cup that you can take in the car without worrying about spills. The Cuppow is $7.99. (Hopefully they’ll come out with jar sleeves to protect your hands from hot coffee and tea burns.)
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