I've also had good luck with Rema patches, bought in bulk. I've use Rema, Slime, and even Elmer's rubber cement, and can't tell the difference between them over many years and many, many patches. The key is preparation -- sand the mold release off the tube in the area, apply the glue and let it dry. It's easiest to replace the tube on the road and patch the leaky ones at home.