2c washing soda
1c baking soda (not shown)
use about 2 Tablespoons per load
* I doubled the recipe for my family, and the powder is fine, didn't get clumpy or moist.
So then I put on my thinking cap and got busy with the math.
Just to prove it, I'll list all the details.
Fels-Naptha= 97 cents
2c borax = 71 cents
2c washing soda =94 cents
1c baking soda =25 cents (big bag from Sam's)
$2.87 a batch, which makes 7 cups, which equals 56 loads.
I have used this for a full month, and am happy with the results. I have not noticed any fading or dinginess.