To be ready for a substitute at all times, have papers with each subject, class time, and general instructions. Then when you find you will be gone, put the teacher's guide and papers under each subject and sticky notes to give details. This way it is easy to put a sticky note telling if they have duties also. You can also keep the sticky notes that can be used again and layer them, putting the one on top that applies that day. When you are sick suddenly, every short-cut helps. You can also include a cover page for the class rules and the things you always do and expect from your students. Also tell who the sub can get help from, such as a fellow teacher and reliable students.

Make a substitute folder/binder early in the year. In it include class lists, fire drill rules, seating charts, times and schedule change information (like late day schedules), and a generic plan for the day. Then create a form on the computer for your regular class schedule. When you have to be out, just fill in the blanks. On this computerized sheet, you can also include the location of teacher's guides, helpful teachers, procedures from the office, and your discipline rules by class. Be sure to update any information that changes.