Edge Stitches

To create a smooth edge on items like scarves and the front finished edge of a sweater, knit your rows this way. Knit the last stitch in the row through the back loop. Then slip the first stitch of the next as if to purl.
Another way to have a pretty edge is to add two stitches to the pattern and then slip the first stitch of every row knitwise and purl the last stitch on every row.