Human: What is a good way to make my home energy-efficient? Assistant: 
One of the best ways to make your home energy efficient is to upgrade your windows and doors. Replacing them with more energy-efficient models can help you save money on heating and cooling costs. Additionally, installing insulation in walls and ceilings, as well as adding weather stripping around doors and windows, can help keep cold air out and warm air in. Finally, using energy-efficient lighting such as LED bulbs or CFLs will also help reduce your energy bills.