cast on four stitches.
knit two, yarn over, knit to the end of the row.
continue this knitting two stitches, then yarning over and knitting to the end of the row until you have the width you like. 40 or 42 stitches, for example. the yarning over increases your dishrag one stitch per row and gives the nice loop edging.
to decrease: knit one, knit two and three together, YO, (yarn over) knit stitch 4 and 5 together and knit to the end of the row.
continue until you have six stitches left on your needle.
knit one and two together, three and four, five and six until just three stitches are left. cast off. cut, & pull extra yarn through with a crochet hook.
surely, I have written it up before, but someone asked for it, and I thought I could store it here to copy. ha