Smoke detectors are not optional. They are a must have item. You should have one in every bedroom in the house as well as in many common areas like the basement, stairwells, and hallways. It is much better if you get smoke detectors that are interconnected so that when one goes off, they all go off. In the event of a real fire there is very limited time to exit the building. Have the interconnected kind could provide that extra measure of safety that makes difference! Carbon monoxide detectors are always a good idea as well. CO is odorless and colorless so having a carbon monoxide detector is also a necessity. You should have them if you have an attached garage, a generator, a wood burning stove, a hot water heater and a furnace. Of course most of us have many of these things. It’s an inexpensive device that should be in every home. One recent development are detectors that come with 10 year, non-replaceable batteries. At the end of 10 years you simply replace the detector. Detectors should be replaced at the end of their life. They do not last forever as they lose their effectiveness over time. They make many different kinds of detectors to fit almost any situation. Get them today!