Do you have a substitute folder? Or at the very least do you have a substitute information sheet with important information? If not, then you really need to consider creating one. Even if you are someone who never uses a substitute, emergencies can arise. It is not hard to create one. This article on creating a substitute folder will give you ideas of what to include. And one final thought, if at the end of each day you set your substitute folder on your desk then you are covered if an emergency should happen to arise.