Carbon Neutral Strategies

Run dishwasher full

Only run your dishwasher when there’s a full load and use the energy-saving setting
You can save 100 pounds of carbon dioxide per year.

Turn off electronics

Turn off electronic devices you’re not using
Simply turning off your television, DVD player, stereo, and computer when you’re not using them will save you thousands of pounds of carbon dioxide a year.

Use less hot water

Use less hot water
It takes a lot of energy to heat water. You can use less hot water by installing a low flow showerhead (350 pounds of carbon dioxide saved per year) and washing your clothes in cold or warm water (500 pounds saved per year) instead of hot.

From:  http://www.climatecrisis.net/takeaction/whatyoucando/index2.html

Change Filters

Clean or replace filters on your furnace and air conditioner
Cleaning a dirty air filter can save 350 pounds of carbon dioxide a year.

Change Thermostat

Move your thermostat down 2° in winter and up 2° in summer
Almost half of the energy we use in our homes goes to heating and cooling. You could save about 2,000 pounds of carbon dioxide a year with this simple adjustment. The American Council for an Energy Efficient Economy has more tips for saving energy on heating and cooling.

Already set at 68 in winter and 77 in summer.  Not much to gain here.