2) A *family* calendar that can generate day/week schedules based on the constraints it is given.
E.g: Mom has meetings at this and that time. Dad on other days. Kids need to be picked at school between 3 and 3:30pm. Jr has karate at Weds.
Now, who-takes-who-when?
Bonus points if it includes other types of constraints: e.g, time it takes to make dinner, propose different recipes to avoid trips to the market.
LOTS of bonus points if it *suggests* events to get the family out of the routine: Thu is looking free? Go hike with the neighbors.