semi serious answer – I shall adopt flashys one on no gambling advertising.
citizens income / positive and negative income tax and sharply rising income tax so the poorest are better off, the average the same and the rich worse off. simplifies tax and national insurance and benefits.
vastly increased powers for tax fraud. give companies the option of tax on turnover or profits to stop them exporting all the profits like starbucks.
End all the internal market nonsense in the english NHS
Set up a proper federal system of government.
Base indirect taxation on carbon costs
Legalise all drugs bar cocaine and make it a healthcare issue not a criminal justice one – this would halve crime overnight as junkies don’t have to go out robbing and given the experience elsewhere would end heroin addiction over a generation
Introduce strict liability for road users to protect the vulnerable
Introduce mandatory retesting for driving licence every 3 years.