I don't know if I've become a grammarian because I'm a writer, or if I've taken to writing because I like studying the rules of the English language. Either way, I've acquired somewhat of a superpower (it's a blessing and a curse) for spotting English mistakes.
That's why, when I stopped by Kinko's today and noticed a rack of QuickStudy pocket guides on various school subjects, my spidey spelling sense started to tingle, compelling me to pick up a copy of The QuickStudy for English.
Among other things, as you can see, it boasted a list of "commonly mispelled words."
If you don't get what I'm after here, then I recommend you pick up such a list yourself — just not this one.