About Clumping: Sometimes the powdered version of this recipe will clump, especially in higher humidity. This can be alleviated by pulsing the powder in a blender or food processor. Be sure to store in an airtight container (put plastic wrap over the top of the container if necessary).
For Cloth Diapers: Do NOT use this on cloth diapers. The soap will cause cloth diapers to repel. Use the <a href="http://measuringflower.com/2013/08/homemade-allnatural-cloth-diaper-detergent/">Homemade Cloth Diaper Detergent</a> instead.