What is one piece of technology (app, gadget or tool) that quietly makes your life 10x easier ?

Hi everyone, I feel like we’re surrounded by so much technology that it’s kinda impossible to keep up with everything . And every once in a while, I’d stumble across something small but game-changing, like a simple browser extension that blocks annoying pop ups, or an app that organizes receipts automatically This made me realize there are probably countless tools out there that could save time, reduce stress, or just make life more fun if more people knew about them, I’d love to hear what underrated tech you’ve discovered that others might be sleeping on