Marnie, that’s a great link, with great illustrations. I’ll put it up on the site, at least until I can get around to making a video on weaving in ends! 
Happyskrappy,
I haven’t done argyle socks before! But one of these days I’ll do it, and when I do, of course I’ll probably turn it into a video! LOL
I’m sure there are all sorts of tricks to doing argyle, and different ways. As Marnie said, you can cut each color change on every row, and work in the ends (lots of ends!).
But I’m wondering if it would be plausible to use this trick I just read about, for doing intarsia in the round.…(Without cutting the yarn!) This trick will give you a seam up the back, and is sort of a combination of knitting flat and knitting in the round:
The idea is, you knit your way through one round, and then purl your way back (unusual for circular knitting!). You choose the point where you will be turning the work, probably at the back of the sock, and in a place where a seam stitch will be least noticed. You will increase an extra stitch here before you begin the first round of intarsia. This stitch will be the “seam”, and will be slightly different looking than the other stitches. So, you create this seam stitch, and knit all the way around, doing intarsia, ending by knitting this seam stitch. Turn the work, and slip the seam stitch. Purl your way back around to the seam stitch and purl the seam stitch. Turn the work. Slip seam stitch, and work the round, ending by knitting seam stitch. Continue this way, always beginning a round by slipping the seam stitch, and ending the round by knitting or purling it.
This, of course, is total cheating for argyle! But why not?!
I haven’t tried it, but it seems (seams!) like it would work! LOL
Another cheat would be just to work the piece flat, and then sew up the seam, and work with circular needles after the argyle pattern.
Now you’ve got me interested in trying argyle! I don’t think I’d have the patience to do it any other way than a cheating way! 
Amy