This quilting tutorial walks you through using an "Add a Quarter" ruler to easily fold and trim your foundation paper piecing. One side of the ruler allows you to add a quarter inch to any project you are working on. The other side is a straight edge to quickly fold your pieces back while folding. Paper Piece 25% Faster! The Add-A-Quarter PLUS ruler features: Tapered edge to fold back foundation Wider for easier handling Use one tool for straight edge and for trimming 1/4" seam allowance Paper piece faster with less motion Combo pack includes 2 lengths (6" and 12"). Purchase one at Sewing by Sarah:https://sewingbysarah.com/products/add-a-quarter-plus-ruler-set
The sewing term "stitch in the ditch" OR "ditch stitch" refers to the term of stitching right in the seam line or in the space between the fabrics in a seam. It’s most commonly used in quilting, attaching waistbands and finishing binding. This article talks about stitch in the ditch as a machine technique, but it can also be done as a hand technique. 

This article walks through the reasons to use this technique, equipment and tips for success.
Learn how to add depth and movement to your quilts with applique and trim.  Sharon Picciolo shows you some great examples.