I plan my vacation weeks for the next year in Dec. and give the families all a letter so they can book their holidays with their employers too. But if there is an emergency and you need some days off then hopefully all your clients will be understanding and will have backup like grandparents lined up in case of emergencies or they can take a few vacation or sick days with their children. It's life. I have 3 paid personal days in my contact in case I get sick or have an emergency. Stuff happens. We are human too. Take care Sweetness.