Auto-correcting spelling etc errors

At the moment the word filter in the forum fixes the following - a few of these added just now after a recent thread about people's carelessness esp with have/of:

Mackewen > McEwen
McEwan > McEwen
peleton > peloton
pelaton > peloton
should of > should have
would of > would have
must of > must have

Any others we should help people get right?
John Stevenson