Just a heads up, if you're thinking about what it's like to give the booze a rest for a while there is a community of people who take on a 3 month or 12 month sobriety challenge and blog about their experiences. It makes for super interesting reading, and the passion in the community really reflects how big the drinking issue is in people's lives.

http://hellosundaymorning.org

Full disclosure: My team built the tech. But you'll want to get involved for the community.