> In the morning I typically check my work calendar, my personal calendar, the shared family calendar, and the kids' various school calendars. It would be convenient to have these aggregated. (Copying events or sending new events to all of the calendars works well until I forget and one slips through the cracks...)

But... calendar apps already let you aggregate your calendars into a single view. Even if you have them on separate accounts (or some other impediment), you can easily share a read-only version of, say, your work calendar with your personal account so that you can have them combined in the morning.

> When my partner goes to the store I get periodic text messages from them asking how much X we have and to check I look in the fridge or pantry in the kitchen and then go downstairs to the fridge or pantry in the basement.

We used to have a similar problem until we made a policy that if you use something up you add it to our shared shopping list, usually with a voice command to Siri. Whenever someone is at the store we just check the list, making sure we mark off things that are purchased.

We have forgotten the simple, reliable solutions of the past - a grocery list on the fridge, a weekly planner, a weekly plan itself rather than constant coordination. Cell phones and easy communication led us here.

Fridge cataloging is actually a great use case for image recognition, the problem is fridges no accommodations to power accessories inside them.

I have a couple of temperature sensors to alert Home Assistant if the fridge gets too warm. It would be easy and cheap to add some ESP32-camera modules to track contents...but there's no way to power them nicely (I simply don't know where I could pull USB power through).