Thanks for all your input. I have found that I tend to overpack the entertainment and that usually as long as I am paying attention to her (reading, talking, whatever) she is good. I am also fortunate that she is somewhat obsessive about buckles being buckled whether it is carseat or shopping cart. I like the idea of the seat belt bag. What a great idea.

I'm mostly worried about kicking and the tray table going up and down. Last year a simple no would stop the behavior. This year I think it may take some distractions like toys or food to get her to redirect her energies.