How do I get a neat edge when knitting the garter stitch?
To get a neat edge, on every row I knit to the last stitch, then slip the last stitch purl-wise with the yarn at the front of the work (abbreviated to “wyif”).
Should you slip the first stitch when knitting?
When slipping the first stitch of a row, always slip it purlwise, as this preserves the stitch orientation, keeping the right leg to the front, so that it’s properly positioned for next time you need to work it. … That is, slip the stitch with yarn in back if it’s a knit row; in front if it’s a purl row.