1) Caulking and Weather Stripping: ENERGY STAR estimates you can save up to 20% on heating and cooling costs by properly sealing and insulating. Caulking and weatherstripping are simple, effective, and inexpensive ways of sealing air leaks in your home. Caulk is generally used for cracks and openings between stationary house components like around door and window frames. Weatherstripping is used to seal components that move, such as doors and operable windows.
2) Window Films: Window ﬁlms can help reduce energy costs up to 50% by blocking unwanted heat during the warm months while keeping heat in when you need it. Eliminating hot and colds spots will also help reduce excess use of HVAC equipment and can prolong its life. They also can block up to 99% of unwanted UV Rays, winch can fade your furniture and carpet.
3) Change to Low Flow Shower heads and Aerators on Faucets: Low flow shower heads can range from $10 to $200, and can come in different options, 1.5 to 2 gpm(Gallons Per Minute). Some even come with what they call a “Pause Button” to restrict the water til you need it rinse off. It will save you on average 2000 gallons of water per person per year. Aerators for faucets cost only a couple dollars and can save you around a $100 a year. For maximum water efficiency, purchase aerators that have flow rates of no more than 1.0 gpm. Both low flow shower heads and aerators for faucets are super easy to replace yourself.
4) Compact fluorescent light bulbs (CFLs): Energy Star-qualified CFLs use around 75% less energy and last up to 10 times longer than traditional bulbs. Replacing 15 inefficient traditional incandescent bulbs can save you about $50 per year.