Send them all to Liverpool.
Higher drinks prices is a good one. You go into More Reasons, and the own-label beer is cheaper than water.
I dont think tougher sentencing works, IMHO.
Also, by nature we in the UK are reserved and well-mannered people when sober, but get us drunk, we turn into blithering idiots, unable to walk or talk, or see reason. I know I've been there, and I'm guilty of doing some rather silly things. Seemed like good fun at the time.