I am more interested in being able to boycott Walmart or other retailers along with the banking system and credit cards than save a few pennies.
Plus, my cups all have scum on them unless I wash by hand because the dishwasher detergent does not actually clean!
I'll see what I can come up with, and I'm certain that a powdered dishwasher detergent would be much more economical to ship; both because it requires even less per load and because I think that I can make it even more concentrated than the clothes detergent, due to the fact that a couple of those sodiums serve no purpose in a dishwasher. As long as I don't need to substitute other ingredients, I can make this stuff very concentrated.