Countdown to First Day: Be Prepared for Your Music Classroom with Checklists        It's the middle of July, and you know you still have vacation left. But, you are noticing announcements of PD Days for July. You see the dreaded Back to School Sales. It dawns on you that the fight for the copiers will begin August 1. And unfortunately, the COVID cloud is hanging over once again as the vaccination dance continues in earnest. Then...............THE LETTER arrives. I don't know what you receive, but we always got the "Yeah, it's starting!" letter from the superintendent, along with schedules and must-dos for convocations, team meetings, deadlines for insurance, building meetings, deadlines for watching the required HR videos.....the things that make your head spin because there are so many, no matter how experienced you are. Top that with excitement of seeing colleagues again, and suddenly you realize you're on Day One, and your bulletin board isn't finished,...