Things that light up . . .
Headlights, so I can drive in the dark
My refrigerator and freezer, so I can see what’s in there
Nightlights, so I can navigate the stairs and around the house at night without having to turn on the overhead lights. I just replaced all the bathroom fixtures with LED lights, and it’s a true shock to the retinas if I have to to run them on in the middle of the night. A nightlight is perfect!