Free Amendable Academic Year Calendars
I usually knock these up using Publisher, but recently found this website.
Free Academic Year Calendar including Templates for Excel
These blank calendars have been useful for planning!
They're available as pdf, or they have templates in Excel.
For the Annual one, you simply need to specify the Year. the month you want to start with (useful for those who don't have Sept-July years!) and start day of the month (Sunday or Monday) and you're away. It's really neat!