How do you spoil a great meal? Divvy up the bill with an itemizer. These skinflints have to break down every item on the check to the penny, including prorated tax and gratuity, for every party at the table. In doing so, they know they will pay exactly what they owe and not a cent more. More likely, if your party is large or has successfully overcome sobriety, some or all of you will gladly fork over a bit more in the itemizer's favor just to avoid the dinner audit.