knitting (or a lesson in "why didn't I already know that?")

I've been noticing that with a lot of my knitting my wrists get tired (well, really my right wrist). I usually just take breaks, but it can be a bore when I want to finish up a project and then have to constantly take breaks. Well. . . I watched this video and I'm sold. I'm completely converting to the British way of doing things! Why didn't I know about this already - watching the video will amaze all you knitters out there (it sure amazed me).