Girls like Diana Spencer, armed with nothing more than a guinea-pig-rearing certificate, proud to say in that old Sloane way that she was 'as thick as two short planks,' became the exception as girls from Benenden and Downe House started to fast-track towards the City and law, consultancy, media and the arts.

Sloanes aren't cafe society or NYLON hedge-funders with million-pound bonuses, or London Eurotrash wearing upgraded style anglais. Ann Barr's and my original picture of them in 'The Official Sloane Ranger Handbook,' published in 1982, was of an upper-middle-class world, conservative and fairly homogeneous, united by old attitudes and institutions.

Chandeliers are marvels of drop-dead showiness, the jewellery of architecture.

In Britain, eponymous lifestyle branding as we know it started in the late 1960s, with two fascinating families - the Conrans and the Ashleys - who in increasingly brilliant settings and catalogues sold rather different visions of what the new ideal upper-middle-y life looked like.

Nobody knows anything. I deal with people in all walks of life, some of whom should have some idea of what they're doing. And they're all clueless. It's astonishing that any bridges stay up, or that planes don't constantly plummet from the sky. It's heartening, in a strange way.

There was a time when formal clothes were one of life's great pleasures, as well as a way of describing instantly a man's status wealth. Toffs wore the most, the proles the least. Fast forward to 2008 and clothes are still an unrivalled pleasure but some men - and this includes many of our betters - have confused status with fake informality.

If beauty isn't genius it usually signals at least a high level of animal cunning.