That looks much easier. I was concerned about it not dissolving well, especially in cold water, since I have trouble getting the stuff to dissolve in the hot water I use to make it a liquid. It takes a lot of stirring. So I never tried the powdered form.
Does it dissolve ok in the washer?
Yes I have never seen it not disolve except once I saw a small chunk of the fels naptha that probably didn’t get ground up well enough in my food processor on a black pair of pants. I only wash towels and sheets in hot water and have never had a problem with the soap disolving in cold water.
As for vinegar working on static cling, I haven’t noticed any. But prior to the vinegar I was using Mrs. Meyers dryer sheets which are expensive and I’m not sure they do anything good for the money either.