|It could prove dangerous to leave your iron on when unattended.
I would like to share this information that I saw as a tip on Fons & Porter's Love of Quilting.
To help you remember to turn the iron off, keep a elastic bracelet on the ironing board. When you turn the iron on, out the bracelet on. If you leave the room with the bracelet on, you will know to go back and turn the iron off.
This tip was originally given to a grandmother by her young grandson. It was very clever of him.