Here are 3 tips from the document to save energy and lower costs: 1. Install a programmable thermostat to keep your home comfortably warm in winter and cooler in summer. 2. Use compact fluorescent light bulbs which are more energy efficient than incandescent bulbs. 3. Check your home for air leaks and insulate any gaps to prevent warm or cool air from escaping. Hiring a professional for an energy audit can help identify improvements.