Since 2007 The Home Depot has offered a light exchange as part of their Eco Options Initiative
They offer to responsibly recycle old holiday bulbs and discount LED lights up to 50% to encourage people to make the switch.
Their results are encouraging;
- close to 600,000 light strings collected
- more then 8000 MWh of energy saved
- more then 2,227 tonnes of green house gas emissions prevented(equal to the annual energy consumption of 789 houses)