problems with long tail cast on + circular knitting
I'm a new knitter and have just started to use dpns. I finished working on my first sock this weekend and have noticed that my last cast on stitch is too loose after I try to knit it in the first row. I used the long tail method. I've also noticed this problem when I used circular needles, but didn't think much of it because I sewed that part closed to make a purse.
But now that I'm knitting socks, it's going to be a problem. Does anyone have an ideas on how I could fix this, or perhaps what I'm doing wrong? Maybe I should use a different cast on method? Thanks.