Amazon is offering 5$ coupon if you try the Camera search function from Amazon app. After you get the coupon, use it on the Tplink smart plug + Echo dot 3 – 29$ deal, which is sweet to be even sweeter – 24$.
So it’s like to have the plug for free if you buy an Echo dot
Update: You should use the AR view from the camera function in Amazon app, after that, click on the coupon and you will be taken to the promo page, choose the Tplink deals, and choose the Tplink plug + Echo dot deal.
5$ coupon:
https://www.amazon.com/b?node=17387610
Echo Dot (3rd Gen) – Sandstone with Kasa Smart Wi-Fi Plug
https://www.amazon.com/dp/B07HPY7RN1/ref=cm_sw_r_cp_api_fp.9BbQZZDK45