World Toilet Day
Yes, seriously. World Toilet Day is something organised by the UN. (Even has its own website https://www.worldtoiletday.info/ ) mainly to raise awareness of the 4.2 billion people still living without adequate sanitation.
Go to their site to find out more, just click the link above, in the meantime I'm off to....
And I'll be wondering about all the names given to this convenience we all take for granted.