Yep - thanks Ingrid. Sorry about the time lapse ausmakaiva. :( I don't have internet at home, so I stole some weekend online time on my brother's laptop
I made a striped scarf once by carrying the yarn up the side. It doesn't make the edges look bulky at all. In fact, when I showed another knitter who wasn't familiar w/ carrying, she commented on how crisp the edges look.
I used worsted weight yarn and you actually couldn't even see the yarn being carried up the side. Perhaps with a heavier weight yarn, you *might* be able to see the yarn carried up the side; but, like Ingrid said, I agree that it looks better than attaching. Not to mention ... it's nice not to have to weave in so many ends!