What are the rules for working seams?

When working seams, it's important to ensure that fabric edges are aligned properly before sewing to prevent puckering. Use a consistent seam allowance, typically 1/4 to 5/8 inch, based on the project requirements. Press seams open or to one side as needed to reduce bulk and improve the overall finish. Finally, finish the raw edges with techniques like serging or zigzag stitching to prevent fraying.