Of course, the computer system UPS uses to track this information and other data to optimize driver routes isn't cheap, but the concept is as basic as it gets: Using less fuel saves the company money while reducing greenhouse gas emissions.

FORBES: More Bang For Your Efficiency Buck

He told BBC News Online he felt NHS Direct nurses relied too heavily on a computer system to guide them as to what course of action is best for a patient.

BBC: NHS Direct referrals criticised