Always turn the pot or pan handle to the side so the hot food cannot be pulled down by a child or knocked over by anyone. Lots of kids are horribly burned this way.
Don't keep textile items (towels, pot holders, etc.) on the stove. If a burner is accidentally turned on, it could start a fire.
Don't leave plastic items on the stove. They can eventually melt from the heat of the pilot light.
To eliminate a smoking broiler and reduce the chance of a grease fire, place a few pieces of dry bread in the broiler pan when broiling meats. They will soak up the dripped fat.
Don't go and start another project while cooking. When a pot of food goes dry, it can start a fire. If you must go onto another project, set a timer to remind you check on the pan.
Invest in burner covers if you have an electric range. Once the burners are turned off, they can lose their red color but remain incredibly hot. Put one of the covers over a burner after you turn it off as a reminder that it is still hot enough to burn.
Don't eat food with mayonnaise in it if you forgot to put it away. And throw away a jar of mayonnaise that has been left out. It doesn't have to be out long for it to give you food poisoning.
Wash your hands after handling raw chicken, beef or pork to prevent food poisoning. The bacteria can be cooked out, but is very dangerous if it gets into any food that will not be cooked.
Or, wear disposable gloves while handling raw beef, pork, poultry or fish.