Cancel Trident and put the money into health and social care - especially more walk-in centres to take some of the pressure off A&E depts; recruit more staff, and bring all services like cleaning in-house, instead of them being outsourced to the cheapest bidder, which practically ensures that corners are cut and safety compromised.
Bring all schools back under the umbrella of LEAs - so that national standards (such as all teachers being trained) are maintained - and cut all the ridiculous extra paperwork, so that there's time for music, drama, art etc for all who are interested - not for qualifications, but as extra-curricular activities
Forbid anyone from owning more than two houses, and allow tenancies to be set for longer terms - to give people security. BUT tighten up on anti-social behaviour, so that 'neighbours from hell' can be evicted swiftly.