It's even more important in accident black spots. Statistically, the less time you spend in them, the less likely you are to have an accident there.
Quashed on appeal. http://www.hulldailymail.co.uk/locked-Ian-Huntley-crime-did-commit/story-11968249-detail/story.html
Statistically the safest drivers are those that have 30-39mg of alcohol per 100ml of blood, (the legal limit being 80mg). They're actually safer than sober drivers, no joke. See here: http://www.80mg.org.uk/danger.html And for the morning after, don't forget the Mellanby effect: "Studies have shown that impairment is greater at a given blood alcohol level when the BAC is increasing than for the same BAC when the blood alcohol level is falling. This is called the Mellanby effect."