If you have a big family and need to keep tab of appointments, after-school activities, holidays, etc, then this is ideal and much cheaper than anywhere else.
We've used family planners/calendars before but this one seems better thought out and cheaper (at the moment) than the others.
This one opens out to hang on a wall and has a further drop down pouch for keeping pens etc, to hand. It has five columns for mum, dad, 3 kids, etc (or mum + dad, and 4 kids). I also like that it has 17 months on it - so you can start using today, up to Dec 2011). Nice presentation - neutral & humorous.
Overall very useful, and might make a good gift for a larger family. Cracking price (and in my experience a lot cheaper than waiting til Dec/Jan when all the good ones are sold out!).
Hope that helps someone.