I use equal parts washing soda, borax and and fels naptha soap that I put through my food processor (then I wash it VERY well!).
Remember, Dove is 99.4% moisturizers (or some crazy number like that). I would not use it on my clothes. Maybe Ivory soap is what you meant? There are several bar soaps that will work, but I have an HE washer, so I need to be careful about suds.