And this is a serious discussion on how we can tweak/improve our homes little by little to ensure that we utilize the energy available to us most efficiently, saving our expenses, and this planet for future generations. I could think along the lines of - Proper insulation - Energy efficient lighting - energy efficient appliances - Making sure that the requirement is met ( not too little, not too much ) - Proper plumbing, with minimal water loss. - Judicious use taps in Kitchens for cleaning/washing utensils. - Proper green environment around the house as far as possible. - Proper disposal of waste/garbage etc. - Efficient cleaning methods like Vacuum and moping only. - Use of devices such as solar heaters for water. Need suggestions/inputs on the list, so that we can compile a whole list of suggestions/Ideas that will/can help you save energy and cut down on those massive bills!