End of the world as we know it.

Wal-Mart Making Real Changes

...changes in Wal-Mart's strategy aimed at getting existing customers to buy more products by offering trendier and better quality items. Other steps include better tailoring stores to their surrounding communities and taking a leading environmental role in reducing waste and greenhouse gases.

If every Wal-Mart customer bought one efficient bulb, it would save U.S. consumers $3 billion in utility bills.