Amazon has the Texas Instruments TI-30XIIS Scientific Calculator (30XIIS/TBL/1L1/BK) for $9.88 with free shipping on $25+ or with Prime. #1 Best Seller in Scientific Calculators. Has excellent Amazon Reviews.

Amazon has the TP-Link Kasa Smart Plug Mini with Energy Monitoring (KP115) for $11 with free shipping on $35+ or with Prime. List price: $20. Features Voice Control: Add voice control to any outlet. Control lighting, fans, humidifiers and other appliances from anywhere with the Kasa Smart Wi-Fi Plug KP115 with Energy Monitoring. #1 Best Seller in Plug-In Timers.

Has excellent Amazon Reviews.

Amazon has the Fitbit Versa 4 Fitness Smartwatch (Black) for $105 with free shipping. Built in GPS, 40+ Exercise Modes, 24/7 Heart Rate Tracking, Irregular Heart Rhythm Notifications, 6+ Day Battery Life.

Amazon has the Chromecast with Google TV (HD) Streaming Stick (G454V; G9N9N) for $20 with free shipping for Prime members or on $35+. Has excellent Amazon Reviews.

Best Buy sells it for the same price.

Amazon has the 24-pack AmazonBasics AAA NiMH Rechargeable Batteries for $16 - 5% off with Subscribe & Save - 10% off coupon (eligible on first S&S order for this product) = $14 with free shipping for Prime members or on $35+. Has excellent Amazon Reviews.