I just have to share. I want to tell ya'll about this great book I just bought tonight at Books A Million. It's called The Sewing Machine Attachment Handbook by Charlene Phillips. It tells you how to use all the attachments that come with vintage machines. I haven't read it all the way through yet but a lot of the pictures they use have featherweights in them.
I have to admit that I never did learn how to use all those feet that came with my 1973 Viking. I only used 2-3 different feet. For the FW, I've never used any other foot than the regular foot. Thanks to this book, I may actually learn to use the other feet. I'm really excited.