Here’s what you need:
1 bar of soap (whatever kind you like)
1 box of washing soda (in the laundry detergent aisle at a department store – it comes in an Arm & Hammer box)
1 box of borax.
A five gallon bucket with a lid (or a bucket that will hold more than 15 liters)
– Three gallons of tap water
– A big spoon to stir the mixture with
– A measuring cup
– A knife
Step One: Put about four cups of water into a pan on your stove and turn the heat up on high until it’s almost boiling. While you’re waiting, whip out a knife and start shaving strips off of the bar of soap into the water, whittling it down. Keep the heat below a boil and keep shaving the soap. Eventually, you’ll shave up the whole bar, then stir the hot water until the soap is dissolved and you have some highly soapy water.
Step Two: Put three gallons of hot water (11 liters or so) into the five gallon bucket – the easiest way is to fill up three gallon milk jugs worth of it. Then mix in the hot soapy water from step one, stir it for a while, then add a cup of the washing soda. Keep stirring it for another minute, then add a half cup of borax if you are using borax. Stir for another couple of minutes, then it all sit overnight to cool.
That’s that! The next day, you’ll have a bucket of gelatinous goo that’s a paler shade of the soap that you used. One measuring cup full of this goo will be about what you need to do a load of laundry – and the ingredients are basically the same as laundry detergent. Thus, out of three gallons, you’ll get about 48 loads of laundry. If you do this six times, you’ll have used six bars of soap ($0.99 each), one box of washing soda ($2.49), and about half a box of borax ($2.49) and make 288 loads of laundry. This comes up to a cost of right around three cents a gallon, or a savings of $70!!!