This one is super crazy easy. I adapted it from The Family Homestead. Thanks for the inspiration, family homestead!
Here’s the recipe I’ve adapted:
1/3 c grated ivory (or fels naphtha) soap
1/2 c washing soda
1/2 c borax
2 gal water
25 drops of lavender essential oil (or your favorite essential oil)
Grate the bar soap (it’ll be about 1/3 of a bar) and add it to 6 cups hot water. Stir til dissolved, then add the dry stuff and stir. When it’s all dissolved, add the rest of the water, 24 cups. This will bring you up to 2 gallons of water total. Add the oil. Let it sit in a big bucket overnight until it gels. After that, pour it into an old laundry soap bottle and go to town. Use about 1/2 c each load.
I love this stuff. It’s gelly, smells good, and is crazy cheap. I paid no more than ten bucks for the boxes of borax and washing soda and a package of ivory soap, and I’ve made quite a few batches this year. Since I put the soap into “real” laundry bottles, my roommates use it, too. They were afraid to do so when I stored the soap in jars. Now, in conventional containers, they don’t know the difference. Bam.