Having stupidly left my mobile at home today, I found myself searching for old-fashioned payphones at Waterloo station.
There they were. Close to the old Eurostar platforms. Tumbleweed blowing freely between each of the kiosks.
I was shocked to discover that it now costs 40p to make a local call on one of these machines.
40p? I can patronise the pissoir across the concourse for 10p less than that.