I previously carried some type of whiskey. Last winter I started Loading up with 50/50 Port & Brandy which was excellent. Most people can't take straight whiskey but the 50/50 was great for sharing. Pretty warming too.
In my old job we were sometimes required to attend the worlds most boring seminars. One power point presentation after another, all day. For those events it was vodka, and in the breaks I would help the other staff by "improving" their orange juice, just to get us all through it.