Thumb Score: +9 Best BuySamsung Galaxy Ring Sizing Kit (Black) + $10 Best Buy Gift Card [bestbuy.com] $10 Oura Ring Gen3 Sizing Kit + $10 Best Buy Gift Card [bestbuy.com] $10 Thanks to member Banana_ezWIN for this deal purchase idea for using the free $10 Best Buy promo certificate that expires August 3rd.