This document provides instructions to make a shoulder bag from a pillowcase in 15 steps. The key steps are to fold the pillowcase corners to form the bag shape, cut out the bag pattern, fold and stitch the strap to form a triangle, stitch the pillowcase opening closed, and attach bias tape around the bag opening and strap. The finished bag is a quick and easy project using only a pillowcase, sewing machine, and bias tape.