Do you or have you ever used a pedometer?

While I was sitting on my ass, I read on the Mayo Clinic’s site that the average American walks 3,000 to 4,000 steps a day, or roughly 1.5 to 2 miles.
It doesn’t seem like much considering the goal is to reach 10,000 per day.
I usually keep track by time and speed on the treadmill or distance outdoors but now I am curious about pedometers.
Have you ever used a pedometer or a fitbit type of device?