There’s a reason public toilets are equipped with U-shaped seats ... soap and toilet paper. After the report was released last month, The Post asked Manhattanites whether they’d use the ...

Now that you know why the public toilet seat is shaped the way it is, learn which public bathroom stall is the cleanest one you can use.

Our efforts to dispel the mysteries of the modern visual landscape come to a head this week. For previous columns, click here; to submit your own suggestions, email us. Lovely. But where were we?