Witthaya Prasongsin/Getty ImagesI used to dread the back-to-school shots more than all the homework inevitably coming our way. Not because I’m anti-vax. Far from it. But the whole process feels like too many steps, too many forms, and too much time I didn’t have. Not to mention all the bargaining I had to do with my rising kindergarteners to actually let the pediatrician’s medical assistant stick them with needles.It would start with a reminder email from the school when I’d realize I was behind on scheduling. So, I’d call the pediatrician, sit on hold, and try to line up an appointment that d...