Price: $79.95 - $149.95 on Amazon
The Ember temperature-controlled mug sounds unnecessary until you remember how often you reheat your coffee or hot water. It's possible to set the ceramic or copper mug to a desired temperature, anywhere from 120°F to 145°F, and use an app to remotely change the temperature while stuck in a meeting. Although there's a travel mug option, most thermoses already keep liquids nice and hot. The real revolution is the classic mug.
