No matter what the subject, one of the best ways to control your behavior is using feedback. If you trying to drink responsibly, one way to achieve that is to get feedback on how much you are drinking and how it's affecting you. An easy way to track your drinking is by using Drink Logger (http://www.drinklogger.com). When you are drinking you can use their site to keep track of your drinks and they then provide an estimate of your blood alcohol content to help you drink responsibly. They have a mobile version of their site (http://m.drinklogger.com) and they work with SMS messaging, so you can keep track of your drinks when you are out of the house too.