I've finally found a perfect use for the TP-Link Smart Plug, controlled by the Amazon Echo. The TP-Link plugs into an electrical outlet and then the Christmas tree lights are plugged into the TP-Link. I changed the name of the TP-Link from "light" to "Christmas tree" using the Kasa app. No more getting down on hands and knees to plug and unplug the lights. Watch the YouTube video for the demo and the full effect.