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.

Global new money has houses everywhere, and serious helicopters, it doesn't aspire to the Miss Marple life of St. Mary Mead.

Pop managers are fixed in the dramatic stock character repertoire too, ever since the first British pop film musical, Wolf Mankowitz's 'Expresso Bongo' of 1959, with Cliff Richard as Bongo Herbert and Laurence Harvey as his manager. The key components were cast as X parts gay, X parts Jewish and triple X opportunistic.

Eponymous brands aren't that popular with analysts and investors now. You can only take an eponymous brand with a living figurehead so far, they argue. What happens when they grow old and die? What happens when they misbehave and go seriously off-brand?

People are fretful about lifestyle retailing because the idea that anyone's immortal soul and deepest longings can be quite so readily anticipated and consolidated with several hundred thousand other like-minded types is worrying.

Marmite - like that other little black-jar job, Bovril - is so much a Mark 1 staple-of-Empire brand, so much part of the Edwardian world of enamel advertising signs, the history of grin-and-bear-it industrial food.

When I hear about something allegedly happening in the world I always ask: who is doing it? Trends break out because they're based on real demographics, like there being fewer nuclear families or more people living alone. If 10 people in Shoreditch are doing it, it's a 10-minute fad.