As part of a wellness initiative, my full-time job allowed us an opportunity to get a free Fitbit Flex. I just received mine last night, and can't wait to figure out how to use it. Yay for job perks!
"This slim, stylish device is with you all the time. During the day, it tracks steps, distance, and calories burned. At night, it tracks your sleep quality and wakes you silently in the morning. Just check out the lights to see how you stack up against your personal goal. It’s the motivation you need to get out and be more active."