TomTop offers the Etekcity WiFi Smart Plug Mini Outlet 2-Pack for $19.99 with free shipping. That's $20 off, $6 under our mention from Black Friday of a similar set, and the lowest price we could find. It can be used with Amazon Alexa.
Planning for retirement savings to last until you are 90 or older is a daunting job. Make these errors, and the task goes from "difficult" to "impossible."