Like lots of people, I struggle to get enough exercise. So I recently got something to motivate myself to move: a pedometer that counts steps. It’s a simple thing. But it’s amazing how much difference this gadget makes in my motivation. Instead of grumbling when I have to get up, I see it as an opportunity to get a few more steps. Mundane tasks, like getting one of my kids a cup of water, become opportunities that help me work toward a larger goal. In that sense, my pedometer has changed my perspective and my motivation. Now I look to get…