To save time and space here, please allow me to direct you to Energy Savings page at my website. It includes tips on energy savings of all sorts, and it links to specific energy saving ideas that apply to the kitchen and laundry.
The idea is relatively simple. You can keep the money in your pocket or give it to the power company. Trust me, if you save 25% on your energy bill, the power company won't even notice, but you'll notice.
We heat with wood mostly, and even if we just supplement our heat with wood, we save at least $100 a month, and sometimes more like $200 a month. Our savings all depends on rates, how warm we keep the home, and how much we push around the heat from the wood stoves with electric fans (that add to the utility bill).