They're a set of monthly tips to help you green your home, clothing, transportation, gifts. While they're pretty simple and basic, they're an easy way to be reminded of all those little things you can do to live green.
Another is: "Advance Fair Trade. Try to pick at least one product you buy frequently and replace it with a Fair Trade product from a company you can count on to have good labor and environmental practices."
See? Simple things, but sometimes we all need a little nudge.