For your sensual, energy-conscious wife Joy who is all about the 'mood lighting':
Design Glut Candlestrip candles and base ($20/4; $40)
The lovely ladies of Design Glut make flipping off the lights for a little holiday “special time” a cheeky commentary on energy conservation. The Candlestrip consists of four power cord-shaped pillar candles that “plug” into a resin base shaped like a power strip. Candles and base (sold separately) are available in black, white or orange and are also a fantastic idea for holiday table centerpieces in green homes.