The original reason I went in search of tips on working with stripes is that I am making a throw for my sofa -- using what's in my stash. I had enough for some blocks but felt they needed sashing and the fabric I have, while patterned in curlicues and dots is, nonetheless, striped! I decided it would look best on the diagonal. After looking at a zillion sites that essentially offered tips for cutting on the diagonal for binding, I devised my own method and that has worked out well. Aware of the potential for stretching, I decided to starch well before I cut and that helped. Sewing to the blocks was another matter. More than once I was horrified to see that the sashing slipped away so I was only sewing the block! Lots of time with my seam ripper. In the end, it will be just fine. Not meant to be entered into a show, just to keep me cozy.