I want to try making my own laundry detergent. I have seen several recipes where you grate a bar of home made soap and add it to a variety of ingredients. My question is, could I make a liquid laundry soap using a small amount of castile soap? I would like to use the castile soap, borax, washing soda, baking soda and a mixture of essential oils such as tea tree and maybe lemon. I saw a recipe that also called for grapeseed extract. DOes this concoction sound logical? I have never done this before, so could anyone offer advise as to what % I should use of each thing? Thanks you so very much for any help you can provide.