After finding the Princeton Tec EOS LED headlamp the days of flashlights are pretty much behind me. Great light! It fits comfortably on my head, or with the strap wrapped around my hand, it pretends to be a great flashlight.

Runs on 2 AAA's. Lifetimes: High, 2 hours constant brightness, 4 hours declining light; Medium, 9 hrs constant brightness, 3 hrs declining light; Low, 44 hours constant brightness, 16 hours declining light. Lithiums are OK (not the case for all lights).

Right now on sale at http://www.brightguy.com/products/Princeton_Tec_EOS.php for $27.50