The substitute teacher can be the student's ray of hope in an otherwise dreadful day. To keep a sub happy, remember that he or she is trying to muddle through a set of hastily scribbled, illegible, or otherwise unintelligible documents that pass for a lesson plan. Cool subs are made; to make sure that a sub is cool, keep the sub happy and make his or her job as easy as possible. You might just get out of class early.

An additional ray of sunshine in the life of a substitute teacher is that most school districts give him or her a sticker that allows them to park on any school district property. This is an absolute boon to subs who live in metropolitan areas.

One thing that a new substitute teacher should be aware of is his or her new role as a vector. The sub will be exposed to many, many diseases as he or she travels from school to school, classroom to classroom, becoming a viral Johnny Appleseed to students, teachers, and roommates. Substitute teaching mixes poorly with weak immune systems.