Currently the most useful torch I own is a small LED head torch made by petzl called the Zipka Plus:

http://www.altrec.com/shop/detail/15935/0

http://www.backcountrystore.com/store/PTZ0053/Petzl-Zipka-Plus-Headlamp.html

Its incredably small so you can take it with you anywhere you like (the first time I saw one was actually when a friend of mine pulled one out of her purse) and its incredably versatile with its self retracting strap. You can hold it as normal or you can strap it onto your wrist or head (with zero things to adjust) for hands free use. The batteries last a hell of a long time on it (80 hours on max brightness and 150 hours on low brightness, and low brightness is perfectly fine for doing most stuff when your camping and the like), absolutely brilliant for anykind of up close work on the car if you get in a fix. The only downside to it is that while it gives good brightness close up, the beam doesn't travel a great distance so its not as good as some torches if you want to project the beam a long way. But as something for use when camping or when stuck by the roadside its great. <img src="/images/graemlins/cool.gif" alt="" />