depends what your list is. but here are some things you can do to help the environment:
-replace your lightbulbs with the evironment safe ones
-stop buying water bottles and use the ones that you just out in the dishwasher and then use again
-take shorter showers
-unplug everything when you are not using it (cell phone charger, hair dryer, lamp etc.)
just do stuff like that and it will make a difference