When I switch colors I weave then tie a knot. It's not noticable since it is on the reverse side, but I feel I'm the only one who does this. I've read that you simply weave into the same colored yarn and then you just cut it, but I like to add the knot just in case it pops out. Anyone else do this?

I also (like many) have trouble seaming. My seaming does not do that nice closing together, I see in videos, when I pull on the string so therefore I think I'm doing it wrong. Also where exactly do you start from? Does it matter in general? Because I've read that one should use their cast on tail while I think the cast off tail is better to begin with from that side.

Any great seaming tutorials out there you can recommend would be appreciated.

http://wineandneedles.blogspot.com/2004/12/wrist-warmer-pattern.html

I knot the yarn. Knitting both strands together for a few sts makes them bulky, and the ends pop out and come undone. So knotting, and tucking the ends under so they're not seen works best for me.

I do it, too. I haven't done anything where I switched colors but have added yarn. I thought I was the only one and that I was being lazy and cheating. I guess not!

No replies to my other question?

Here's an online book with a comprehensive look at seaming.
http://www.studioknits.com/booktoc.htm