About a year ago I made a jelly roll race lap quilt with a jelly roll that I purchased at Hobby Lobby. It was cut so unevenly that some of the seams were way smaller than 1/4" and I knew that there was a good chance they would come apart when the quilt was washed. I decided to just stitch down the long vertical seams with a wide zigzag stitch, and I was amazed at how good it looked!
https://get.google.com/albumarchive/..._Dgh6yky0q8pF0