This one comes with a cool way to get it right, though. By far the most common mistake is made when the "me" or "I" is combined with some OTHER noun or pronoun (Bill in the above example). So to get it right, simply LEAVE THE OTHER GUY OUT and see what sounds right. Surely you wouldn't say "She came over to visit I" would you? [Well, maybe some people might, but...] No, it would be "She came over to visit me." So how does adding Bill to the party change the case of "me"?