Workday 108 Trivia, 3-20-12

This was actually invented in the late 1800s, and it is something that is used today by about 50 million people. What is it?

Read more to get today's answer, and be sure to use it to score your Cars 108 Passenger Rewards.

The answer:  Treadmill!

Congratulations to today's winner, Pat Baker from Goodrich.