The various power leads to various bits of technology were getting muddled, so I thought I'd try organising them better. All sorted out fair enough until I ran into an odd problem.

The way I was doing it needed a set of sockets on an extension with the power cord coming in from the left. All I could find were ones where the power cord comes in from the right. NO problem, just turn the thing upside down. Except that the holes at the back for fixing to the wall have been designed so they won't allow you to do this, or the thing will fall off the wall.

But you can get everything on the Internet, can't you? Not left handed extensions, it appears. And in my search it turns out other people have been flummoxed in the same way.

Sure, I can cobble up something that will sort things out easy enough, maybe use a tower socket instead. But it's very strange. Not the kind of absence of left handed items you find sometimes, arising from the imbalance between the number of people who are left handed and right handed, because that kind of thing doesn't make any difference in this case.   There must be some kind of reason it's come about, but I can't imagine what.