58 birthdays a year

At the 2nd 5th birthday party in a week it dawned on me that, if there are 30 children in a class, between them Oscar & Cailtin could rack up 58 party invites in a year, through school friends alone. 

That's enough for one party every weekend per annum. That's a lot of cake & paint face, not to mention ringing of the ears. 

And just think of the fun we could have with 60 kids when its our turn to host....