Today is, according to the Dictionary of Obsolete and Provincial English (1857), Egg Saturday - being the Saturday before Shrove Tuesday. It should be celebrated with eggs and dancing, like all other days.
The Horologicon is a book of the strangest and most beautiful words in the English language arranged by the hour of the day when you will really need them. Words for breakfast, for commuting, for working, for dining, for drinking and for getting lost on the way home. It runs from uhtceare (sadness before dawn) to curtain lecture (a telling off given by your spouse in bed). It's out all over the world and you can buy it from these lovely people: