efficiency

UPS shed 30 million miles from its delivery routes in 2007, and three million gallons of gasoline, after drivers cut back on their left-hand turns.

"The only left turn you make is to come home," says Dan McMackin, a former UPS driver who is now a company spokesman.

Don’t knock life in the right lane until you try it.

For UPS, it produced a giant cut in carbon dioxide emissions of 32,000 metric tons. That’s equivalent to removing 5,300 passenger cars from the roads for an entire year.