Clothing and footwear sales saw double-digit like-for-like growth in the first week of the month as customers bought autumn and winter collections, but faded as they were too nervous to fill their wardrobes with them.
David McCorquodale, head of retail at KPMG, said October sales figures had been like a "disappointing firework - full of promise, but eventually fizzing out with a whimper" and said winning a share of the Christmas wallet over the next two months would be just as competitive as last year.
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The annual event has earned a place in the record books ahead of the grand final of the 60th anniversary show in Austria this evening.
Local authorities said the move is necessary to "avert the growing number of deaths and increasing harm linked to psychoactive substances".
Some students argued that the centuries-old tradition of wearing gowns, suits and mortarboards to exams was 'archaic' and looked elitist.