I found this class very informative and helpful. The beauty of this class is that once you have enrolled you can access if forever.
Stephanie rereviewed most of the standard feet that come with sewing machines as well as exploring some extra techniques.
I had a problem working out how to use my button hole foot and as luck would have it the machine that Stephanie was using was exactly the same as mine.
I would definitly recommend this class and it was free.