>>Have you noticed how even well-educated people use the phrase "...could care less..." or "...could have cared less..." when what they really mean is "...couldn't care less..." and "...couldn't have cared less..." all the time? I hear it from newscasters, entertainment personalities and yes, even from people here who love to argue the fine points of a discussion. Do a search for these exact phrases in the archives and you might be surprised at the results. Or, then again, maybe you couldn't care less... :-)
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>I grit my teeth to keep from correcting it every time. Stuff like this really annoys me.
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>My husband is probably sick of hearing me correct the weather person on TV every time he or she says "temp-a-chur."

After 37 years since I've learned enough English to prevent being sold (*), I'm still not sure which of these are considered correct, and which are wrong:

expression	pronounced as
et cetera	eksetra
february	febewary
library		lie-berry
product		produk
status quo	staytus cow

(*) a footnote here: back home, when asked "do you speak the language well enough", the minimal positive answer is "they can't sell me".