The TP-Link smart plug is down to $19.99 on Amazon, which is a match for its lowest price. It normally sells for closer to $30. The mini version, which takes up less space, is available for just a few dollars more if you'd prefer it.

This is one of the easiest ways to start adding smart home elements to your appliances. It needs no hub and comes with a free app. So all you have to do is plug it in, connect it to your Wi-Fi, download the free app, and you can turn whatever you've plugged into it on and off with your phone.

If you do already have an Echo Dot or something similar, you can connect it to that easily to enable voice control. The smart plug has 4.3 stars based on more than 18,000 user reviews.

See on Amazon