Do-It-Yourself Home Energy Audits
You can easily conduct a home energy audit yourself. With a simple but diligent walk-through, you can spot many problems in any type of house. When auditing your home, keep a checklist of areas you have inspected and problems you found. This list will help you prioritize your energy efficiency upgrades. (via EERE Consumer’s Guide: Do-It-Yourself Home Energy Audits)