I would love to see a feature in the calendar options thst is similar to Zazzle events previously known as HobNob. You can create an event with details and a cute invite. The systems sends it out to your guest list and they can RSVP yes or no they are coming as well if they are bringing anyone with them. You can also create a line up for food if you want people to sign up to bring food and post pictures from the event on the event too!