My new favorite keychain accessory is this multifunctional tool that costs just $30

The K3 Ultramulti EDC keychain tool is highly functional, combining a flashlight, laser pointer, and lighter into one convenient device.

I spent $30 on this bizarre magnetic keychain flashlight, and it's a surprise hit

To charge up, you just find a free USB-C port on something -- charger, power bank, laptop, or computer -- and plug it in. The port folds away when not in use and is protected from damage by the carry ...