I beg your forgiveness in advance as we start a new year — I’m sure I’ll write “2015” by accident more than once here in January. Although I got it right on this one!
National Hangover Day is going on the assumption that you went to an awesome NYE party last night, and had too much to drink. Or maybe it’s assuming you spent NYE alone at home, and had too much to drink. Either way, last night was pretty lushy. (There’s a group that also wants to make the day after the Super Bowl a National Hangover Day here in the USA, but this one is much more worldwide.)