The Picture of your dog did not show the feet, and actual size; the markings are very much like a German shepherd, but check those ears. They are more breed consistent with a dachshund, maybe a Rot, but I would think the smaller breed. Have a picture of one that looks just like her. ... View related article.
I love this idea, having said that...there are some liquid fabric softeners that have stained clothes going through the softening rinse, and one I will not use again. This lady's formula may have changed that with the vinegar and water, but I would caution, try it on something you don't care about first. ... View related article.