I usually find recipes on the internet and try them. Sometimes I just mash 2 recipes together or just make my own alterations.
I use 1/2C. white vinegar for my laundry softner
This Following a mash up of dishwasher detergent:
1 C. Washing soda
1 C. Baking soda
1 C. Kosher salt
3/4 C. Lemon juice
1. mix first 3 together.
2. Add lemon juice…you want a thick paste to keep a form.
3. Put 1T into ice cube trays and let dry completely.
4. Store in air-tight container
5. I put white vinegar in my rinse aid compartment.