I would recommend to include some comforting items for your 6 year old, e.g. a favorite toy, a colorful book, a jar of hard candy she likes, crayons, e.t.c.

A small sewing kit and some safety pins?

Also I think you can fit in a small radio to listen to the news. What about a spare charger for your phone?

As for the organization. A bunch of good quality zip lock bags is good enough. They provide moisture protection, easily slip in and out of the main bag, and can be re-purposed for other tasks in obvious ways.