When the sun goes down, turn on the lights in just one central room in your house, and encourage your family to spend the evening hours there instead of scattering around the house and lighting up every room. Lighting just one room will save a lot of energy and money over time. Conserving energy means taking a new approach to everyday conveniences we take for granted, like the ability to flip on all the lights and keep them burning all night long. You don't have to completely stop using electric lights, but using candles instead a few nights per week is a great way to save energy and provide inspiration for reevaluating your approach to energy. In addition to these practical reasons for turning out the lights, breaking out the candles provides an instant atmosphere of either romance or spooky fun, depending upon who else is around to enjoy it.  Start by choosing just one night a week to use candles instead of electric lights. Stock up on sturdy, slow-burning candles that will cast a fair amount of light for several hours. On "candle night," try to do activities that don't require electricity, such as telling stories or reading by candlelight. Be sure to store your candles and matches in a safe place when they are not in use. During the day, think of the sun as your primary light source, and rearrange your home or workplace to take advantage of its rays. Open the shades or blinds and let the light pour in instead of automatically flipping on the overhead switch.  If you work in an office, try to arrange your desk so that it's lit by natural light, so you won't have to use a desk lamp or  overhead lighting. In your home, set up your family's main daytime activity area in the brightest room that gets the best sunlight. Drawing, reading, using the computer, and other activities that require good lighting can take place in this room without the need for electric lights. These old-fashioned light bulbs burn off most of their energy as heat instead of producing light. Replace them with compact fluorescent bulbs or...

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Write a summary of the previous text in Chinese:
改善你房间的采光。 用蜡烛代替电灯。 尽情享用自然光。 用节能灯替换掉白炽灯。 尽量减少外围照明。