I love my 1/4" foot!
I especially love that the single needle hole provides more stability when stitching with our fine heirloom fabrics.
So many our favorite heirloom patterns use 1/4" seam allowances. It is a cinch with this foot to accurately stitch each and every seam!
It is also easy peasy to make those teeny tiny 1/8" French seams, by guiding the seam along the inner side of the foot.
The marked guidelines on the toe of the foot make judging pivot points a breeze, as well!
My foot is made by Husqvarna Viking, and fits my Designer 1.
My second favorite foot is probably the Edge Joining Foot.
Do you have a favorite sewing foot?