How do you handle your lawn care?

We've been having Scotts come and treat our lawn since last year, and while things look green I'm increasingly uncomfortable with what they're using to treat the lawn. I don't allow our dog to walk on the grass in our front or backyard anymore, and when I looked at stuff they left on our door and saw promotional materials for Roundup and Miracle-Gro, that was just it for me.

Does anyone use an organic lawn care service or methods and get good results?