Energy inefficiency may spook your party guests, but you can still cast a frightful glow with orange and black mini compact fluorescent light bulbs (CFLs). A pack of two 13W bulbs, with one of each color, costs around $9. ::Builders' Square
Or, as one of our readers eruditely points out, you can just throw an orange shade over your existing bulb.
Check out more of our Green 'Ween tips here.