Teach with Tenacity: Subbing 101: 10 Essentials to Keep in Your Substitute Teacher Bag
Growth Mindset Bulletin Board in 5 minutes!
Substitute Teacher's Survival Kit: Printable checklist
Scholastic: Free Back-to-School Printables
Great tips for any teacher--sub or otherwise!
I use this as a sub every day, but it would also be useful in a Substitute binder in your classroom to get feedback about your class while you were out.
Subsitute Teacher - Precision #SubsituteTeacher
Sub Hub- a great blog for substitute teachers! Lots of information, especially for the K-5 level.