To see an amazing display of late Soviet era poster art created as part of the anti-alcohol efforts Gorby brought in, check out this site. One of the most interesting things about the selection is the absence of underlaying religious morality. The messages are stark and utilitarian but far more effective than a soppy "should not" theme.

Later: I added an example of the posters to this post. Note how the theme of wasting your days is conveyed in no more than the repetition of a single icon. Go to the site to see a larger version. I want T-shirts with this stuff on it.