i have had trouble finding them at walmart or target but have heard they do carry them. you can find them at most local hardware stores, but if for some reason they don't have them they will definately be at home depot or lowes. they are in the section with all the little adapter things that can be plugged into an outlet (like those 2 prong to 3 prong "grounded" adapters which I love). you can also use those clip on shop lights for bulbs and just remove the reflector and put y splitters on those, but the power strip will definately get you the most bulbs in a small area and is so easy to position where you want it.