A few times a year I go through my past records to see how we are doing on our utility usage in terms of water, gas, and electric with the goal of lowering my costs and using less. I have been doing this and tracking my progress since we moved into our house 4 years ago this summer and each year our usage goes down a little bit. This year we hope to see a big drop on our heating bills as I am rebuilding the original wood windows, repairing the aftermarket storm windows, and doing a full paint job on the house (which includes caulking and air sealing). Next year we are looking at getting a tankless water heater and possibly a high efficacy furnace. But I can have the most efficient furnace in the world and still use a ton of gas if the house continues to leaks air, so the air sealing is an ongoing and continuous process.
Do you track your utilities? How are you doing? Will you be doing anything to make it more efficient?