English pronunciation - "If you can pronounce correctly every word in this poem, you will be speaking English better than of the native English speakers in the world." My high school English teacher had us read this the first week of school.
Ten words you need to stop misspelling! This is a little pet peeve of mine when people misspell these. I don't claim to be Editor of the Year, but for cryin' out loud people, pull your grammar together!