You'll never finish them all
More than 17 million cocktail variations can be made from the contents of a top-notch bar.
Chill a cocktail glass with ice before mixing the ingredients. Fill the glass with ice and water. Mix ingredients in a separate container. After mixing, ditch the ice and water, and pour the mixture into the glass. Serve immediately.
Control the pour
Barkeeps shouldn't discard empties or give out liquor by the bottle