My personal opinion of drinking and driving is that it should not be done, full stop. I used to go out for a drink and have one beer then drive home, but eventually I stopped that, as one drink does nothing except make you want more (I switched to orange juice if I was driving).
It's not worth risking other people's lives, not to mention your own. Plus you'd only have to get caught once to lose your license. And that would have a huge impact on your life (I lost my license once for medical reasons and it was HORRIBLE losing my independence).
Don't do it, however tempting it may be.