Even the smallest spark can turn into a blazing flame in less than 30 seconds. Now, could you get your family safely out of the house in that short amount of time? Unless you have a fire escape plan, the chances are probably no.
No matter how old your kids are, have everyone involved in a family escape plan. Use a floor plan to draw the paths of safe exit and make sure everyone knows where to meet outside the house. Teach everyone in the house basic rules, touch doors before opening, get as low to the ground as possible when smoke is present and cover your mouth with a wet cloth if needed.
Once the plan is in place, make sure that it can be executed by checking that all doors and windows open easily, and remember, little hand touch trouble with key lock, they'll make sure you send the kids out doors and windows that can be unlocked without the help of an adult. First start with a planned drill, have everyone start in their beds and when the drill goes off, follow your plan. This is the only way to know if the plan will work. Keep a stopwatch handy and try to get everyone out within 30 seconds.
Once you've mastered the plan through practice drills, you can move to a surprise drill. This will really test the plan with the family. And just remember, stopping for scrapbooks or your favorite sweater or that prized Elvis painting event can cost you seconds that literally can be the difference between life and death for your family, just get out of the house.