Three-four weeks ago I lost TheWorld's Best Flashlight. It was an LED, simple On-Off button, recharge in the wall socket -- but it lasted forever before it needed charging.
I did use it (somewhere in the house, or between the house and shop) but could not find it the next day, and still haven't. I've looked at Wally's, Lowe's, and Amazon but I cannot find another one like it.