Tomorrow is Little Os last day of being four.
He turns five on Monday. 
For some reason I'm finding this the hardest birthday so far. 
Maybe it's because I know being five brings a whole new level of "schooling"
Standard assessment, phonics screening etc. Or maybe it's just because I can't understand where the heck five years have gone!
Either way, we have a very happy, healthy nearly five year old, and I'm feeling that little bit more old!