A SUPERMARKET GOES ALL L.E.D. LIGHTING and — besides the obvious energy savings — won’t be changing a bulb for years. Plus, reduced food spoilage because of less UV. And this observation: “Less lectures, more practicality will get people to see the light, er, LED.”

I haven’t tried out any LED bulbs. They’re still a bit pricey, but if anyone’s got a model they recommend, let me know and I’ll give it a whirl and report the results.