The entrance and exit ramps on the Tullamarine Freeway are like the staircases in Hogwarts. Last Saturday, when I went to pick up my guest from the airport, the entrance ramp was a narrow, orange pole-lined slalom with an unexpected fork that demanded an instant decision: Tullamarine or Calder?

But one week later, that fork leads to a construction area and the freeway entrance is kilometres further on, with a signpost a hundred metres after the turn off. We've now seen rather more of Niddrie and Keilor that we really needed ... but we did get to the airport on time, so that was okay.

So now I'm back to blogging ...