Newspaper headlines: May and Juncker clash and 'Brexit charge' for Brits
"Why the hell do we bother?" is the headline in the Daily Express, next to a photograph of a heated exchange between European Commission President Jean-Claude Juncker and UK PM Theresa May in Brussels.
According to the Daily Telegraph, the pair had a public war of words that left a cloud over the EU summit.
The Financial Times says the prime minister has threatened to crash the Brexit deal unless other EU leaders agree to discuss changes to help her sell it at Westminster.
Mrs May has returned home angry, bruised and empty handed, according to the Guardian.
The Times says her deal is dead and the cabinet is split over how to proceed - with one group leaning towards another referendum, another backing a softer Norway-style deal and a third willing to risk leaving without a deal.
The paper says the rival groups are planning to ambush the prime minister with demands next week.
The Independent says Mrs May suffered an "embarrassing rebuff" at the summit.
It says the most likely way to get a deal through the Commons now is to secure a cross-party majority.
Work and Pensions Secretary Amber Rudd agrees.
Writing in the Daily Mail, she says the government needs to "try something different".
The Mirror says if Mrs May can't find a path through then the only solution is to hand the task to Parliament.
Penny Mordaunt is expected to be the first cabinet minister to unveil detailed plans for a "managed no deal", the Telegraph reports.
It says the international development secretary will suggest agreeing a two-year transition period to allow the UK to develop a maximum facilitation scheme to trade with the EU, which would use technology to create as frictionless a customs border as possible.
Away from Brexit, the Daily Mail reports that panic sales - with discounts of up to 80% - are being held to try to save the High Street.
It says there are fears some big chains could run out of cash as footfall is expected to be lower than last year.
The head of the British Retail Consortium tells the Daily Express the government can help by cutting business rates but ultimately the future of the High Street is in the hands of the consumer.
The Daily Mail publishes mugshots of 14 people who have been convicted of fraud in the wake of the Grenfell Tower tragedy.
The paper between them they took £670,000 from funds intended to help victims.
It calls them parasites and ghouls.
The Times says a further 14 people are under investigation and the total stolen could top £1m.
It says the a climate of chaos and confusion and a council facing intense political pressure in the aftermath of the tragedy was "ripe for opportunists".
Arts minister Michael Ellis has told the Times the process for keeping treasures in the UK needs to be strengthened, after an American billionaire failed to abide by the gentleman's agreement that gives UK institutions time to raise a matching bid to stop pieces being taken abroad.
The paper reports that the hedge fund manager Tom Hill - who bought a painting for £30m - told the National Gallery that after a fall in the value of the pound against the dollar he wanted £38m from the museum.
Markle sparkle versus country Kate is how the Mail sums up the royal Christmas cards sent by the Cambridges and the Sussexes.
The Times says they display the couples' "wildly different styles", which are summed up by the Daily Telegraph as the "relaxed family" and the "Hollywood love match".
The Telegraph points out Prince William's "daringly" unbuttoned shirt in his picture of "rural normality" with his family in Norfolk.
The Sun's royal photographer Arthur Edwards says people will look at it and feel the Royal Family's future is in safe hands.
The Daily Mirror says Meghan and Harry's card - with a black and white image, taken from behind them as they watch fireworks at their wedding - couldn't be more different and "oozes Hollywood glamour".
The Express says it looks like a still from a Bond movie.
The Guardian, meanwhile, says few cards plead to be over-analysed more than one sent by former Labour leader Ed Miliband.
It shows him leaping from behind the "Ed-stone" - on which Labour carved its 2015 election promises - but with the words changed to quote David Cameron's tweet offering a choice between "stability and strong government" or "chaos with Ed Miliband ".
"At least someone is enjoying themselves", the paper says.