It would be great to include holidays on the calendar view. When I get into a groove scheduling in advance I sometimes forget to write captions that mention the current holiday. It would also be helpful for us to be able to add our own events into the calendar or sync with a google calendar.
We now have a Calendar Notes feature that allows you to add notes to any date and time within your calendar. You can mark down holidays, special events, or general notes for yourself/team.