I have a white board and I used to write down our snacks and lunch(I don't follow a strict menu plan either, just whatever I feel like cooking for the day/week), our sensory play and our art of the day. This way parents could read it if they want. I found they weren't reading it much anymore and when it's summer pick up is outside so they never read it then.

I have considered starting it up again now that it's winter and a brand new group of parents. This could maybe stop a few of the questions.