Today I discovered Google pedometer! I love it! All you do is zoom to your walking location, click at your starting point, and then add your route. I discovered that in my neighborhood, if I hit every single cul de sac, the distance is 3.47 miles. When I drove the route I came up with just 3 miles.
I get a little obsessive about measuring things so it will be nice to be more accurate about the distances I walk. I'm very excited.