enseignes below complains about the slowness of TypeIt4Me. I had the same experience with TextExpander (admittedly an older version from 2007). There would be up to a second of delay before the correction kicked in, which is not good when you're doing about 70wpm. Typinator is blazingly fast with its corrections. It fixes something before I even noticed I typed it wrong and reflexively reach for the backspace key. Well worth the license.