Keep your stove and oven clean, especially watching for grease accumulation. Check stove vent hoods, clean the filter regularly, and make sure that if it is equipped with an exterior vent, insects or birds do not build nests or otherwise impede the air flow through it. Check the power cords for your appliances. Look for missing grounding prongs on the plugs and damaged insulation, and replace or repair them if defects are found.