The timing of Mr Miliband's announcement condemning a possible pay rise for MPs' has raised a few eyebrows.
Even by the standards of past disagreements, the row over free school meals is pretty splenetic.
Nick Clegg has accused his Tory partners of letting "ideology" get in the way of education, but insists the coalition is not in crisis.
The Deputy Prime Minister's office has responded to Ed Miliband's call for cross party talks to block the planned pay rise for MPs.
Sources point out that there is already cross party agreement on the issue: all three party leaders have publically expressed their opposition to the reported 11 per cent hike in salary.
Nick Clegg's aides also point out that the Independent Parliamentary Standards Authority does not publish its recommendations until Thursday, so it would be wrong for politicians to get involved in a process - which is rightly independent of politicians - before the announcement has been made.
Deputy Prime Minister Nick Clegg tweeted:
Our thoughts tonight are with the people of South Africa. Nelson Mandela's legacy will continue to burn brightly around the globe.
Deputy Prime Minister Nick Clegg visited the site of the Glasgow crash and said the city is "united in grief and sadness but also united in compassion and sympathy for all those affected."
Mr Clegg laid flowers at the scene and paid tribute to the emergency service workers involved in recovering the victims of Friday's crash.
The Prime Minister and Deputy Prime Minister have claimed that a package of reforms will lower energy bills without cutting green levies.
Writing in the Sun on Sunday (£), they say they will make schemes like the Energy Company Obligation, which is funded by levies on bills, more "cost effective over a longer period".
Other energy-efficiency initiatives include:
- A scheme that could give people buying a new home around £1,000 - or even more in some circumstances - to spend on energy efficiency measures
- More help to improve the energy efficiency of schools and hospitals
- Cash incentives to encourage private landlords to improve the energy efficiency of their properties
David Cameron and Nick Clegg have said that Labour's promise to freeze energy prices will result in energy firms hiking prices before and after the freeze.
In a piece in tomorrow's Sun on Sunday (£) they write:
Labour have promised a temporary price freeze on energy bills. But they’re taking people for fools.
Energy companies would hike up prices both before and after the freeze – so families would end up paying more.
Not only that – by cutting investment in green energy, their freeze would threaten thousands of jobs. Labour’s con is the worst of all worlds.
The government is set to unveil a package of measures to shift the costs of fuel welfare and green policies away from people struggling with soaring energy bills.
In an article for the Sun on Sunday (£), the Prime Minister and Deputy Prime Minister claim the measures will save the average bill-payer around £50.
They say that the government will absorb the costs of giving the two million poorest families a discount on their gas and electricity, which is currently funded by a levy on bills, through the Warm Home Discount scheme.
They say the changes, which include new initiatives to help home-owners and businesses invest in energy-efficiency, mean the government does not have to sacrifice its green commitments.
Deputy Prime Minister Nick Clegg has said the proposed changes to parental leave will allow parents to decide for themselves how to divide up any time away from work to care for their baby.
"I don't think it's for government ... to tell mums and dads what arrangements they agree," he said.
But he was less clear on whether he personally would ever make use of the option of more paternity leave:
New rights to share parental leave between mother and father will help stop women feeling they have to choose between a career and a baby, the Deputy Prime Minister has said.
Mr Clegg has dismissed the present system as Edwardian, saying: "Women deserve the right to pursue their goals and not feel they have to choose between having a successful career or having a baby.
"We need to challenge the old-fashioned assumption that women will always be the parent that stays at home. Many fathers want that option too."