Two solecisms have recently appeared on this site, one of them in the Hitchens interview highlighted today:
“Just desserts”: This is wrong. The phrase does not refer to getting a sweet reward. The correct phrase is just deserts, meaning “something that is deserved” or, as the OED says, “the becoming worthy of recompense, i.e., of reward or punishment, according to the good or ill of character of conduct.”
“Tow the line”: Oy gewalt! I see this all the time, and it’s dead wrong. The phrase is not meant to evoke tugging on a rope. The correct usage is toe the line, and refers to keeping your toes up against a mark but not going over it, as in the start of a race.
Feel free to contribute those mistakes that most irk you, making sure that—for our mutual edification—you give the correct usage as well.