Tiny Tools, Big Utility: 15 Must-Have Mini Gadgets for Everyday Carry
A curated roundup of 15 ultra-compact gadgets—from a high-lumen flashlight and a flame-free plasma lighter to a loud personal safety alarm, mini action camera, pocket ECG card, security key, clip-on book light, and reusable smart notebook—each chosen for real-world usefulness, travel-friendliness, and strong user reviews, with prices ranging from under $10 to several hundred and features like USB-C charging, waterproofing, and companion apps.