Department store John Lewis has achieved record sales of £121 million for the week ending Saturday 11 December.
The figures are eight per cent higher than the retailer's previous biggest week in 2009, when it achieved £112m.
Consumer electronic devices such as iPods were picked out as contributing factors to the success.
David Barford, director selling operations for John Lewis, said: "We are thrilled to have exceeded our record week from last year, and by such a margin. The thaw in the weather has no doubt helped, and shoppers have been out in force throughout the week. Even in areas where snow has persisted we have seen the determination of our customers to deliver a perfect Christmas for their friends and family, whether that is selecting presents or decorating the home. The atmosphere in our branches is very festive as Partners pull out all the stops to deliver the levels of service our customers rightly expect from us."