I walk with my daughter to school every morning (I pick her up in my car in the afternoons, though).  It's one mile to school and, obviously, one mile from her school to our house.  So I walk two miles before 8 AM every single day (during the academic year). And then there's the walk to/from the train station and my office... I don't consider any of this "exercise" though.  It's just getting from Point A to Point B.  It's just commuting to me.