The one and only original Integral Return by me, Justine, the inventor. . 2 methods. 2 ways to line. 2 ways to sew. . Here, I show you method ONE and probably the most popular method. Made using a separate lining, either curtain lining or the same fabric as the blind (self lined) and either hand sewn on or machined on. . Method TWO, the seam free folded method follows in a separate reel. . For the original full tutorial, further tutorials and more information, visit the Integral Return page on m