Green Cleaning

Older homes start out being greener than new ones just by virtue of the fact that the materials have already outgassed. Many built in the 70's and 80's during the "energy crisis" have good insulation and many have had their windows replaced with thermal ones.
If we think about the cleaners many of our parents and grandparents used, we will remeber that not only did things sparkle but we rarely had trouble breathing in a recently cleaned ares unless someone got carried away with the bleach. Vinegar, baking soda, salt, lemon juice and bleach pretty much covered every cleaning situation that needed something more than pure soap. (Remember Ivory Flakes and 20 Mule Team Borax?) These ingredients and pure castile soap clean just as well today as they did then and lessen the toxins in our home environment. They often save a lot of money as well.
Homes with good ventilation rarely need either refrigerated air or air fresheners. (Or the chemicals they contain.) The best way to have clean fresh air in your home is to open the windows and doors and install ceiling fans.