Why is the right edge of my work always so loose?

[kmnowicki]

What am I doing wrong that the right side of the RS of my work is always loose. It causes a lot of issues when I need to cast on for an edging on a blanket. Any suggestions?

[suzeeq]

Could be when you start the row your stitches are looser. For neat even stitches at the edge, I do the first stitch, then pull the yarn a little and work the next couple sts a bit tighter. That keeps the end sts from being loose.