Preventing Homemade Liquid Laundry Detergent from Clumping

I stick a marble in each one of my jugs and gently shake it before each use. Works great!

Obviously, homemade doesn't have the additives in it that keeps it from thickening and in liquid form. The bar soap is a solid, and that's why it solidifies when the liquid is cooled. I don't stir mine at all after pouring it into the bucket. It forms a semi-solid mass that I can scoop out when I use it. I like it much better than that "snotty" consistency. I've not had much luck with the powdered form fully dissolving in the wash and it just heats and clumps in the bottom of my blender while making it.

I just use the powder instead of cooking it down. For the same reason. I didn't like the clumpiness.