Also called "The Third Hand," this nifty device attaches to your sewing table, preferably right next to your sewing machine. When the clamp is holding the fabric taut, you can use both hands to sew. This tool is great for trimming seams and hems, especially on fine, slippery fabrics. Sold as a set.
As featured in Linda's Craftsy Classes Sewing Notions Workshop: Solutions for Savvy Sewing and Sewing with Silks.