Turn off everything that is not in use: lights, TVs, computers, etc.

Check the heating equipment filers, and clean or replace it as needed. Dirty filters block air flow through your heating and cooling systems, increasing your energy bill and shortening the equipment’s life.

During hot months, keep window coverings closed on the south, east, and west windows. In winter, let the sun in.

Activate "sleep" features on computers and office equipment that power down when not in use for a while. Turn off equipment during longer periods of non-use to cut energy costs and improve longevity.

When cooking keep the lids on pots.

Use a tiered steamer or a microwave oven.

Dress appropriately for the weather, and set the heating thermostat to the lowest possible comfortable setting.

Dry clothes outside whenever possible.

In wet/cold weather, dry clothes indoors on a clothes airer, rather than using a tumble drier.

On winter nights, use a winter tog duvet or put an extra cover on the bed and turn down the thermostat further.

Have a shower instead of a bath, approximately 15% percent of an average home energy bill is for heating water.

Only use the washing machine for full loads.

Only use the dishwasher for full loads.

Lower the temperature on the water heater.

Only heat or cool the rooms you need—close vents and doors of unused rooms.

Install low-flow showerheads to reduce hot water use.

Seal and weatherstrip your windows and doors to ensure that you're not wasting energy on heat escaping outside.

A water tank insulation wrap is cheap and helps hold the heat inside the tank.

Add pre-cut pipe insulation to exposed pipes in the loft or other areas.

Seal all exposed pipe in the loft. Insulate ducts to improve your heating system’s efficiency and your own comfort.

When buying new products, check the energy efficiency. TVs, boilers, mobile phones, refrigerators, dishwashers, washing machines, cookers are all rated.

Replace your light bulbs with energy efficient light bulbs. (In a standard light bulb 95 percent of the energy used goes to heating the bulb. Replacing your five most used light bulbs with energy efficient light bulbs can save up to £1 a week in energy costs; also these light bulbs use two-thirds less energy and last up to 10 times longer.)

Use dimmers, timers, and motion detectors on indoor and outdoor lighting.

Save up to 20 percent of your heating and cooling costs.

Warm air leaking into your home during the summer and out of your home during the winter wastes money. Seal up holes to the outside by weatherstripping doors and sealing windows and other gaps along the home’s foundation. A combination of air sealing and adding insulation to attics, basements, and crawlspaces provides tremendous energy savings and increased comfort.

If your home has only single pane windows, consider replacing them with double-glazed windows and doors, this can reduce your winter heat loss by 25–50 percent.

The easiest and most cost-effective way to insulate your home is to add insulation in the attic; if you have less than 6 or 7 inches, you can probably benefit by adding more.

Other effective places to add insulation include unfinished basement walls and crawlspaces. Insulating walls can be more complex, but it can be worthwhile to do if you have little or no insulation now.

Appliances account for about 20 percent of household energy use.

Appliances and electronics really add up on your energy bill. When it is time to replace, remember these items have two price tags: purchase price and lifetime energy cost. When shopping for new appliances (refrigerator, dishwasher, etc.) and electronics (TV, computer, etc.), demand the most energy efficient model as this will save you money over the product’s useful life.

Up to half of your energy bill is for heating.

Turn your heating down every night and whenever you leave home.

Install a programmable thermostat and save up to £70 each year; it adjusts the temperature automatically for you.

When it’s time to replace your hot water tank, buy the most efficient one possible. Consider a tankless, on-demand system.