The EnergyGuide label on new refrigerators will tell you how much electricity in kilowatt-hours (kWh) a particular model uses in one year. The smaller the number, the less energy the refrigerator uses and the less it will cost you to operate. In addition to the EnergyGuide label, don't forget to look for the Energy Star label. A new refrigerator with an Energy Star label will save you between $35 and $70 a year compared to the models designed 15 years ago. This adds up to between $525 and $1,050 during the average 15-year life of the unit.

Check the capacity. 'Standard' 60cm wide dishwashers can take 12, 14 or 16 place settings, whilst slimline 45cm models may cater for 7, 8 or 9 place settings. Compact dishwashers tend to be 45 cm wide and can be placed on the worktop or built in, depending on the model. They may take 4, 5 or 6 place settings.

Never use a scouring pad of any sort to remove stubborn stains or soiled areas, since these pads scratch the finish and any future soiled areas won't clean up as well, especially with the self-cleaning models. When the oven is cool to the touch, place a cloth or sponge, dampened with warm to hot tap water, onto the soiled area and allow it to sit, for about ten minutes or so, to help loosen the soil.