improve on my environmental footprint a little bit each day

I'm a working mother of 2, with a hubbie who also works f/t and we have never been "environmental" beyond recycling.  I am becoming more and more concerned about how my conveniences/lifestyle are affecting the environment.  We have a pretty good life, not extravagant when compared to peers in our community.  But now I am beginning to think beyond that, because even though our conveniences aren't extravagant our choices affect everyone around us and most importantly those with few choices and certainly no "conveniences.