My Carbon footprint

After taking the quiz, I found out that my carbon footprint is 4.46 earths. I think its because I have some pretty good energy saving habits such as turning off the lights in rooms that no one is using and turning off the water when I'm brushing my teeth, mostly common sense stuff. But apparently I still need more improving. Some things I could do is walk to the grocery store instead of drive there, and change my diet so that I will have less of a carbon footprint.