Until February 21, you can save $50 on the Sensibo. The Sensibo—which I'll feature in a future article on high-value smart home products—turns any air conditioner with a remote control into a smart AC unit. The device clones your remote control's infrared signal and allows you to access the full controls via an app on your smartphone. Most remote codes are searchable within the app. You can create a full, seven-day schedule, turn the AC on or based off remotely, and ask it to react to drops or spikes in temperature. The device works with Amazon Alexa or Google Home, so you can change the temperature without getting out of bed. Save 17 percent and get it for $100.