Call 911 immediately. If you have a fire extinguisher or fire blanket near the laundry room, you can attempt to extinguish the fire, but don’t open or touch the dryer. If you can’t put the fire out, evacuate yourself, your family, and your pets from the house, closing the laundry room door behind you. Turn off the electricity to your home via the outside fuse box, then wait for the fire department. After a dryer fire, have your home’s electrical system inspected to make sure there isn’t any damage.

You should change the batteries in your smoke detectors at least once per year. Mark it on your calendar or make it a holiday or birthday tradition so that you always remember it. You should also be testing your smoke alarms monthly to ensure they’re working properly and can alert you in case of an emergency.

You can fireproof an existing door to some extent, but it's better to remove the old door and replace it with a fire-rated model. Anything dealing with extreme heat needs rigorous testing and a door you DIY fireproof will not undergo the same safety measures as a premade one. Consider a door with a rating of at least 30 minutes or more in residential areas.

The short answer is yes, but the longer answer is more complex. Unless the fireplace is ventless by design, you’ll need some type of exhaust pipe system to safely send fumes and other harmful byproducts out of the house. Even then, ventless fireplaces are not always permitted because they do keep the byproducts inside of your house. Ventless fireplaces are safest when installed in spaces that are themselves well-ventilated, like large rooms with lots of windows.