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:
http://knitty.com/ISSUEsummer06/PATTu...
The yarn I'm using for the green sock, color "cedar":
http://www.whitebearfibers.com/
The Ravelry page for the pink shawl I'm wearing:
http://www.ravelry.com/patterns/libra...
My personal Ravelry page for that shawl (includes yarn details):
http://www.ravelry.com/projects/veryp...
The Ravelry page for the green scarf on the mannequin:
http://www.ravelry.com/patterns/libra...
My personal Ravelry page for that scarf (includes yarn details):
http://www.ravelry.com/projects/veryp...