October 9 - 15th is fire prevention week. Start by checking your smoke detectors, as they should be replaced every 10 years.
Start by removing the smoke alarm from the wall or ceiling. Next, look at the back of the alarm for the manufacturer's date. Replace it if it's 10 years or older otherwise just place it back.
It's a great idea to have at least one on each floor and have them inter-connected so that when one alarm sounds, they all will.