Once again a goal that needs to be quantified. A few ideas:
-worm bin for compost stuff
-recycling more
-buy foods that aren’t unnecessarily packaged
-reuse shopping bags
-buy fair trade goods from around the world
-join the food co-op or the local farm thingy here where I work for three hours a week and get x amount of fresh food
-make my really old ‘70’s-era toilets flush more efficiently
-use vinegar and hot water to clean the bathrooms instead of chemicals
-bike/use bus more
-walk more
-carpool more
-figure out my ecological footprint so I can pinpoint areas that need work
-encourage everyone around me to do it too! (without annoying them, because then they get surly and refuse)