I use three feet almost exclusively, my walking foot, Curvemaster foot and my Q-foot. The curvemaster keeps scant qtr-inch seams perfectly because of the guide on the right, but it works great for sewing curved blocks also.
The walking foot is used for just about everything else, except free motion quilting. Like making HSTs by sewing the squares in half and cutting, sewing anything with batting, adding binding, replique with satin stitches, and straight quilting.
I have a Q-foot on my Viking Quilt Designer II for my free motion quilting. It works like a dream and is almost as good as a stitch regulator.
I haven't used another foot for ages.
Curved blocks made easily with Curvemaster
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Walking foot for stained-glass types
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Curvemaster sewing 1/4" seams
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