I quite like the approach to “reducing beer consumption” suggested here: tell people what type of food it is equivalent to scoffing down.
By doing this, we increase the information avaliable to the individual when they decide to drink. As many people seem to be interested in a “healthy diet” or “keeping weight down” telling people that a shot of vodka (or Jager) is like eatting a chocolate bar could have a big impact on their consumption decision.
Information, in conjunction with an appropriate externality tax, and combined with liquour sales mechanisms that allow appropriate pre-commitment by individuals, would lead to awesome outcomes. As a result, I am keen for this sort of information to be out there.