Where would I use Solvy or Super Solvy Stabilizers?

Use it anywhere that dissolving the stabilizer would be preferable to tearing, cutting or heating it away. Both are widely used in the following techniques: Quilting, embroidery, lace work, buttonholes, thread sketching, as a time-saving substitute for paper in foundation piecing, edgework, charted needlework design patterns, intricate embroidery designs on knitwear, cut-work, monogramming, machine spun lace (needlelace), 3-D applique, shadow work, heirloom serging and sewing, battenburg lace, smocking, lightweight and sheer fabrics, toweling, hand-turned applique, serger lace, and more.