When I first started teaching my school used to have a school wide pledge. I never thought much about it, but now that it is gone I seem to miss that old thing! It seemed to have given the students a sense of pride and honestly a feeling of school wide solidarity.
So I decided to start doing a daily affirmation in my classroom!
Seems to be working well! The students memorized it, and if for some reason I forget to put it up in the morning they make SURE to stop me in my tracks before we move on.