We've been slowly phasing out our regular lightbulbs and replacing them with compact fluorescents. This has rendered the regular bulb a little redundant. But we just found a great alternative use for them:
Featured on inhabitat recently, the lightbulb vase, sold by minimahuella in Argentina, gives the classic bulb a new purpose as a modern bud vase. We're into it and wonder how hard it would be to DIY our own.