I plan on spending it flouncing about, consuming internet entertainment, and eating sweet things. I may be dressed as a 17th century poet. Or a 300-pound disability defrauder. That part is still up in the air.
Everyone is welcome to join the festivities, as long as I don't have to assist in any way.
I plan on making it an annual holiday, held on the third Wednesday in June. Years from now, you will be asking yourselves, what did you do on the first NNNMTDAFT Day? You may want to plan your day accordingly.