Homemade Dish soap!

Here's the dish soap recipe that I have so far:
6 cups water, hot so it will melt the other ingredients
1 bar of ivory that is grated (eventually I plan to learn to make my own castille soap)
2 tbl regular ole vinegar (or lemon if you can't stand vinegar)
1tbl washing soda.

Heat the water to boiling, add the grated soap and other ingredients and whisk with a wire whisk. You should let the dish soap cool some. This recipe will solidify and turn kind of stringy and gooy so it doesn't do well in a bottle with a squirt spout. I just put it in a re-purposed margarine dish and scoop it out when I need it. I also keep a re-purposed jar with holes in the lid next to the sink that I put baking soda in for scouring purposes. This soap will leave a tiny bit of foggyness on the dishes so you'll want to use hot water to rinse and you'll want to dry your dishes right away and not let them sit. I'm not sure how much of the residue is from the dishesoap and how much is due to the hard water that we have at our place. Also keep in mind if you need your soap to be real foamy, this may not be the right recipe for you. I don't especially care as long as my dishes get clean and the grease gets cut.
Ok, so I use this soap, but I'm not as pleased with it as I could be. If anyone knows of a soap that will cut grease, not leave a film, and is homemade (of course), please leave me a comment! I'm still looking for the right one!