What we learned this week

• A brick, cut in half, makes a great bookend. I will try this.

• A one tonne crocodile looks like this.

• An economic reason to resist urban sprawl – doubling urban density can raise productivity by a quarter.

• And I don’t like to bore readers with blog stats, but I can’t help celebrating half a million page views this week.

I am away on holiday this week. I’ve posted a few things automatically, but if I don’t reply to comments, that’ll be why. Fingers crossed for a little late summer warmth over North Wales…