Linguists have issues with grammar in every day life just as I have issues with the decimal point. I can't begin to count how many times I see a store marking an item with 0.50¢. I make sure to have the decimal point discussion with students some time in the year. After the decimal point talk, most students catch onto the fact that if stores mark an item for 0.50¢ then we should be able to grab two of the items for a penny. Of course it is either $0.50 or 50¢.