For me, it's a bidet toilet seat. I bought one that didn't really fit as well as I hoped, so now I am shopping for a v2 based on experience. I don't want to live without one going forward. That's for sure.
don’t even need the fancy ones. AA battery powered one costs $10 and performs just the same as the $300 Bluetooth enabled social-media-linked brush with a 3 year BrushPro app subscription (wow! a $240 value! Buy today!)