Knitting Help - Avoiding Ladders

"Ladders" are the gaps between stitches that you'll sometimes see when you're knitting a tube with double-pointed needles or magic loop. Here are some tips to avoid ladders in your work, and how to get better tension throughout.
Links to things you'll see in this video:
The pattern for the green sock I'm knitting:
knitty.com/ISSU...
The yarn I'm using for the green sock, color "cedar":
www.whitebearfi...
The Ravelry page for the pink shawl I'm wearing:
www.ravelry.com...
My personal Ravelry page for that shawl (includes yarn details):
www.ravelry.com...
The Ravelry page for the green scarf on the mannequin:
www.ravelry.com...
My personal Ravelry page for that scarf (includes yarn details):
www.ravelry.com...