We changed light bulbs.
We changed out thermostats, ac unit also.
We have cold meals 1 night a week (or more).
I now telecommute 3-4 days a week.
We make 1 trip to the grocery store a week.
We leave the TV off and read one night a week. TV STAYS OFF DURING THE DAY.
I use gray water to water my plants.
We grow as much of our own produce/herbs as possible. I'm using green bags for less food spoilage
We committed to non-toxic products.
I'm sure there is more... lol