Alternate energy source:

The high cost of energy got you down bunky? Walk it off! Guy Kawasaki post offers a cool stuff idea for alternate sources of electricity;

Eco-nightclub. An eco-nightclub opened in London near King's Cross. It contains a dance floor that converts the up and down motion of dancers to electricity. The process is called piezoelectricity, and it's the same concept that make toddler's shoes flash when they run.