Nearly half of ASDA’s customers have started buying Christmas presents in September, to help spread the cost of Christmas.   ASDA believes a third of shoppers are planning to spend less than last year, as it adds a dedicated Christmas gift shop. InternetRetailing.net says “The impact of the credit crunch is still hitting consumers according to a new survey from Asda which has found that almost half the grocer’s shoppers are already buying Christmas gifts. Of those, 75% s...