Savvy shoppers appear to have been deliberately saving their cash in order to get more for their money in the sales.
And some Britons were already on the lookout for bargains just hours after finishing their Christmas pudding.
Up to 4million of us spent part of yesterday browsing store websites for potential purchases.
Major retailers, including Marks & Spencer, PC World, Argos, Comet and Dixons, all launched web sales just after midnight yesterday.
It was predicted this would lead to online shoppers spending more than £50million on the same day they unwrapped their presents - up 66 per cent from last year.
....Consumer analyst James Roper, from the Interactive Media in Retail Group, added: "The desire to shop doesn't go away and the web fills a niche when stores close.
"The peak spending time was likely to be after the Queen's speech and between 8pm and 10pm."
And a spokesman for PC World said: "Sitting in front of elderly relatives playing charades is one way to spend your Christmas Day - surfing for good deals is another.
"Boxing Day is one of the biggest shopping days of the year, and people are keen to get started on the sales."