3 per pack Kasa Smart Plug HS103P3 at Amazon.com (https://www.amazon.com/dp/B07S57PQSM?tag=quackdeals-20) are just $19.99 – turn devices on/off from anywhere (phone with Kasa app, work with Alexa and Google Home Assistant).
(https://m.media-amazon.com/images/W/MEDIAX_849526-T1/images/I/51Xu+cW-bWL._AC_SL1050_.jpg)