It's never too early to plan for a sub! By setting up a good Sub Binder, you can rest assured that your substitute teacher will have everything they need to keep your class running in your absence. After 25 years in the elementary music room, this has worked better for me than anything else. It can be used with your Sub Tub, or set up to be used alone.
*Editable MS Word Document.
This template is intended to help you set up your own sub notebook. I have included some of my own procedures and instructions as an example, but you are free to customize it to fit your needs.