The above linked article tells about common phrases that people use without realizing they are quoting Shakespeare.
“Off with his head” is one of these quotes. I assumed it was taken from the Red Queen in Alice in Wonderland.
“Live Long Day” was one that I thought came from the song about working on the railroad.
The others didn’t strike me as usual, but it was interesting to find that they were quoted from Shakespeare and it was nice to know which play they came from. I found it an interesting article.