A tiny torch, but very flexible and useful.
It's only a little bigger than my thumb, and weighs very little. But in that little space is a wide 'flood' light, a long throw 'spot' light, and a red light. And a big clip that holds things pretty tightly with rubber grips. And a magnet to attach to ferrous metal things. And the base is flat so it can stand up on flat surfaces too.
Oh, and it's pretty reasonably priced too, by the standards of *good* torches, at around £25. I find it way more useful than the torch I was previously carrying around, and that one was well over £100.