High energy and water consumption is something you should think about allyeay long, not just during the holiday season. Consider these to save on your bill.
Check your refrigerator and freezer doors to make sure they seal tightly. This will keep the cold air in and the warm air out.
Use the microwave whenever possible. Microwave ovens draw less than half the power of your regular oven, and they cook for a much shorter period of time.
Manage your Thermostat to avoid using auxillary heating or heat strips, which consume three times as much energy as a conventional heat pump
After meals, make sure ypour dishwasher is fully loaded before ypou run it. Use water saving settings if your appliance has them.