Good for you if you read down this far.
A former brother-in-law of mine serves in the National Guard. As part of some cross training, he spent some time in a Scandinavian country. He said those boys over there drank as hard as anyone he has ever met. However the penalties for dinking and driving were very severe. I believe if you were caught you simply lost your driving "privilage" for life. Period. End of story. Well, consequently, no one even thought of driving drunk. Because of the severity of it, rides were always in place before the party started. It was just natural. Maybe we could learn something here.
And hey, what a concept! Make descisions before taking/drinking something that specifically impairs your judgement...