This turned out even more gorgeous than I thought it was going to be. The colors came out almost perfect. There's one spot (about 2" long) where they sort of muddle together, but the rest of the scarf looks great, and the little mistake isn't noticeable when I'm wearing it.
I think the secret to getting a good result is to choose two skeins that CONTRAST rather than COORDINATE. That way you can always tell them apart.I used one in very bright colors, and one that was more cool/muted. Even though the skeins didn't "go" at all held next to one another, the finished product looks faaabulous.
If I did it over again, I'd choose a slip-stitch edge instead of knitting straight ribbing. The side where the stripes were carried up looks a little different than the other one.
And I probably will do it again, since both the boyfriend and various family members have fallen in love with it and now want their own.
For now, though, I just want to snuggle.