Also: wash your clothes about a quarter as much as you do now, and hang them to dry; don't use the dryer.
Work from home if possible.
Install a heat pump or a swamp cooler instead of an air conditioner.
Put in rooftop solar if you can.
Grow your own vegetables and raise a few backyard chickens if you have the space.
Ride your bicycle where safe.
Take public transportation where available.
These are not huge sacrifices, and can even be lots of fun.