These little LED flashlights come in handy, and are more convenient than using your phone to light up a dark area. They come with batteries, and the buttons have a small catch on them so you can keep the LED illuminated without having to keep your thumb on the button. I have one in my glove box, my tool box, my travel bag, and on keychains. Once you have them around, you will use them a lot. Amazon has 10 for $(removed), with free shipping.