Pat got this little jokebook which consisted of amusingly illustrated examples of common english language mistakes. For some reason, I was a lot more annoyed than amused. In an ideal world, such a list should be presented as an exam, not as humor. Perhaps I simply have the heart of an editor.

Oddly, a similar topic came up in a forum that I frequent. Here are some other things to think about; see if you know when to use each.
Ensure vs
Insure vs
AssureCompare with vs
Compare toDamages vs
DamageThat vs
Which vs
Who
Comic from Sinfest