Specialty presser feet -
How many of them do any of you actually use?
In my case, I could probably get by with my "basic zig-zag foot" that came with the machine, the darning foot, the button foot, and a zipper foot.
I do have a 1/4 inch foot - it does not do "that much" for me.
There are a bunch of others that I don't even know what they are called and/or what they are for, much less how to use them.