I thought I would take advantage of a joke to fix the booboos we make.
Incorrect: If worse comes to worse…
Correct: If worse comes to worst…
Incorrect: Do a 360.
Correct: Do a 180.
Incorrect: pawn off
Correct: palm off
Incorrect: Hone in.
Correct: Home in.
Also, the abbreviation we frequently use, e.g., derives from Latin, exempli gratia.