This time last year, we had no children at school. This time next year, we'll have two . . .
This impending change in circumstance has been brought into focus in recent days due to the fact that - after putting it off for quite some time - Dr Z and I have, at long last, applied for a school place for The G.
Looking at her as she is now - The G, that is, not Dr Z - it's difficult to picture her being packed off to the classroom as soon as September.
Having said that, I thought the same about The B 12 months ago and now, less than one full term into his educational career, it's impossible to imagine him not going to school.
Things tend to change so quickly, it's no surprise that it's proving so hard to keep up . . .