Switches & Outlets. Any switch or outlet that sparks or shock when touched in the normal course of operation should be repaired or replaced immediately. Flickering lights can also mean trouble. Outlets should be located in the wall rather than in the floor. Floor plugs are subject to spills and mopping. Install ground fault circuit interrupters (GFCIs) in bathrooms and kitchens to prevent shock or fire.
Dimmers. Provide more flexible lighting with a dimmer. Dimmers can help you save energy and extend the life of your light bulbs. When dimming a lamp the energy saved is as high as 98% of the proportion of unused energy. Lighting can play an important part in security, deterring intruders whether the property is occupied or not. Low levels of illumination can be programmed to operate at night in certain rooms or hallways. When the house is vacated lighting levels can be selected that copy normal usage. This can be by time clock or by selecting a vacation mode. Dimmed or selectively switched levels of illumination will save energy and is more effective than leaving lighting on or using simple plug in timers.