Remove the duty on alcohol completely at the same time as legalising all drugs with just a nominal tax.
The upshot of this that is that within minutes every town centre in the country will become an utter warzone that'll make the gaza strip look like a teddy bears picnic. For about a week.
By the time that weeks over, we'll have reduced the population by enough to eliminate unemployment completely. We'll have purified the gene pool of tattooed **** caled Baz, who own pit bulls. And also his Bird sharon (who'll die screaming 'LEAVE IM BAZ, HE'S NOT WORTH IT!!!'). So… overall we'll have reduced the welfare bill by about £70 Squillion pound per annum, thus negating the money lost though a tax on alcohol. And it'll now be safe to go into an English. provincial town centre at night. Sorted!
I really should be running the country 🙂