Thanks, everyone, for the many helpful suggestions. In the end, I decided that my on-my-person (actually, in-my-messenger-bag) needs would be better served by a simple head/clip light, so I ordered something completely different - the Doug Ritter eQ Hands Free. Yes, I know that on-my-person would be even better, but that doesn't work for me in a warm weather business suit. And no, it won't fit in the Altoids tin, but I can use the space saved for the little and more survival-oriented items that I'd prefer to keep out of sight. A flashlight is very benign. Cheers, Matthew