It may be old news but it is new news to me. The "beer goggle effect" has been quantified by academics in Scotland, as reported by BBC News back in August 2002:
They found that men and women who have drunk a moderate amount of alcohol find the faces of the opposite sex 25% more attractive than their sober counterparts.
The study also revealed there was no difference in the beer goggle effect between men and women.
Once again, I find myself wondering how I can gain access to the grant money which funds such serious research.