Check your Smoke Detector
Everyone hears how important a working smoke detector is, but few take the time to make sure theirs is working properly. Me personally I grew up a firefighter's granddaughter and a firefighter's sister so you bet we had our smoke alarms regularly checked and we even had fire drills in our house so we know where to go and meet if something unfortunate did occur.
You like the majority of people out there who take this small white circle on their ceiling for granted, but it has saved countless numbers of lives. I remember when I was a tween and eating breakfast one morning that I smelled something funny coming from the basement and as I turned the corner I saw a huge amount of smoke. Simultaneously as I saw this smoke our smoke detector went off and we all went outside. Luckily for us, the fire was contained inside our heater. Since this day I have never taken for granted this small circle on my ceiling, as I will always remember the fright I felt as I saw the smoke and how this beeping perhaps saved our family.