What calendar events would you like to see added to make the calendar more interesting week to week?

I have added my own events and holidays to the calendar. Would be nice if we could truly customize the calendar for each household or even for each sim. Also, I think it would be nice if we could have different tabs for public holidays, cultural events like festivals, school events, household events, etc., Or maybe have some boxes to tick on what events to show on the calendar, it has become really cluttered.