Earth Day has come and gone, but that doesn’t mean that your green habits need to stop. This spring we have been taking a lot of walks together; we have built that in as a new habit after dinner most nights and weekends. We are a pretty active family already, but walking is a good way to supplement our sports and activities. Our walks are also a chance to talk about things that matter to us.   Depending on the night, I walk with one or both of the girls. We get exercise in. We use our own energy, instead of driving to the gym, and we take pride in and enjoy the trails…