There should be a way to input the alcohol content of what you are drinking, as every beer, wine, liqour, etc. Has a different alcohol content, which greatly affects the outcome of ones BAC. Also beer comes in different sizes like 16oz and 18oz which Aren't mutiples of 12 which I am asuming is 1 beer. Also what about ports? Those are in between the Alcohol content of wine and liqour. Just a few suggestions. It's a great idea. Much respect to the developer, the app. Gets you a very good idea of what your BAC is.