2. You should be able to drink more than one
A signature drink shouldn’t be so strong that you (or your guests) can only get through one. A gin martini, for instance, is a great signature drink if you are a varsity player—like mid-century crooner Dean Martin—but three ounces of gin will knock most people on their ass. Instead, pick something appropriate for your drinking level. Those who need more can always spike it with the whiskey they smuggled in via their monogrammed groomsmen flasks.
[Photo via @bourbonandhoney]