The pic above by Sewbizgirl is a perfect example of a string quilt! Decide ahead of time how big you want your blocks. My backing (a light gauze) is cut 1/2" bigger, so when the block is done there is some trim room. The tricky part for me is the triangles at the end of both corners. Ideally, I like for them to be big enough so when I trim the excess 1/2" there is still enough fabric to work into the design. (Once your 1/4" seam is used on two sides of it, I don't want it to disappear!) Another thought: a variety of widths is visually pleasing on these blocks. Enjoy the process! These are so fun to make!