The USB can cooler and heater (which can also be used for tumblers and such – as long as they have the right size) costs $45. Expect Thanko to list the thing in their English online shop soon.

The space-heater theory says you can turn down the thermostat while your home, too. Instead of paying to heat the whole house, you can just use a space heater to warm up your bedroom or your office.

If a space heater is the answer, what kind is best? We live in a 100-plus-year-old home with a forced air gas furnace. When it was installed in 2005 it was a high efficiency model.

This kit, featured on Forbes, Uncrate, WIRED, GQ, and more, makes your existing heater smart by adding a plug and thermostat to it, and pairing them to the FOVI app.

The Peltier USB Can Cooler/Heater will make drinks frosty or toasty, and hold onto them as well. You would think this feature would come standard, but sadly very few are actually functional cup ...

If you’re mostly using just a room or two in your home, it might make sense to turn down the thermostat and run a space heater in the room you’re occupying. Adobe.