Amazon has the TP-Link Deco M5 Simple Whole Home Mesh Wi-Fi System (pack of 3) for $147 - $20 off coupon (check "Apply coupon" box) = $127 with free shipping.
Replaces wireless router and range extenders, and the set of three covers areas up to 5,500 sq. ft.
Newegg has a 2-pack of the TP-Link HS210 Smart Wi-Fi Light Switches (3-Way Kit) for $60 - $15 off with coupon code AFEMTPLK01 in cart = $45 with free shipping.
Works with Alexa and Google Assistant, no hub required.
Amazon has the TP-Link Archer A7 AC1750 5GHz Dual Band Gigabit Smart WiFi Router w/ Alexa, Parental Control & QoS for $50 - $10 off coupon (clip green coupon) = $40 with free shipping.
B&H Photo Video has a 2-Pack of the TP-Link HS200 Smart Wi-Fi Single Pole Light Switch, TPHS2002K (No hub required; works with Alexa) for $80 - 50% off coupon (click "Clip Coupon" button) = $40 with free shipping.
Ends tomorrow. Newegg has a 2-pack of the TP-Link Deco M5 Dual-Band Whole Home Mesh Wi-Fi System for $165 - $65 off with coupon code NEFPBF7 [Exp 2/23] = $100 with free shipping..
Replaces wireless router and range extenders, and the set of two covers homes up to 3,800 sq. ft.
Sam's Club has a 3-pack of TP-LINK KL110 Kasa Smart Wi-Fi White LED Dimmable Light Bulb on sale for $40 + 10% non-member surcharge + $6 shipping = $50 shipped. Normally around $20 per bulb.