I only use the foot that came with my machine. I have an old 1950's Singer that is a reproduction of an 1850's machine. I do not have any fancy stitches and don't want any.
But if I need to do other things or replace my foot or machine I need to get more informed.
So what kind of foot do you use? I am not real sure when I see a foot refered to just what they are talking about.
I collect old sewing machine related things and i have several plastic cases of parts including feet but I still do not have a clear picture of what they are all for.
Here is my foot on my machine