Rechargeable Motion Sensor Night Light

I keep one of these on the stairs because flipping a switch with full hands at night is basically impossible. It senses you coming, gives you 20 seconds of soft light, then shuts itself off, so nothing stays on wasting power. The magnetic base means you can pull the light off and carry it as a flashlight during an outage, then snap it back when you are done. And since it recharges over USB, you never have to crack it open to swap batteries.