THERESA May believes she can get a more economical Brexit deal in the January sales, it has emerged.

With a vital commons vote set for January 14, the prime minister is confident of ‘nabbing’ a discounted Brexit deal if she gets up early to beat the Boxing Day crowds.

She said: “As it stands the so-called Brexit divorce is about £39 billion.

“But in the sales you’ve got to expect that to go down to at least £38 billion. Maybe even £37 billion if we get it online and choose the free shipping option, although I don’t know if I can put that much on my debit card.

“Plus you’ve got to imagine the customs union will be having some sort of sale. Maybe 10 per cent off all tariffs or something.”

She added: “I don’t know who I am any more.”