Sewing Tip: When pinning your sewing patterns in preparation for cutting, the pins should never protrude from the pattern edges (as shown above). Keep in mind that each sewing pattern provides an exact stencil or replica of each garment piece. At the pattern cutting stage, it is your responsibility to cut along the pattern edges as accurately as you can such that not only do the fabric pieces maintain the garment's design, they also don't veer off from the patterns' designated size.
When pinning your paper patterns to the fabric layer(s) underneath, keep all pins within the pattern edges and not protruding onto the fabric surface. If part of your pin is sticking out, away from the pattern, it will be virtually impossible to cut the full pattern accurately along all its edges.