Work days are long and coffee gets cold. How do you fix that? With a USB-heated travel mug that keeps all 16 ounces of your morning joe at optimal temperatures well into the afternoon (it also works via car charger). The spill-proof lid should protect against splashes on your dashboard or laptop computer, but, for the love of the Starbucks mermaid, don’t put this mug in a dishwasher.

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