Haha, it's hard enough to find time to sew my own.
The interesting thing is that I'm not sure if what I did is correct. Technically, the green is in dexter, I think, because the chief sits over it (in terms of layering) and it's the only color in the base division of the shield. However, if you called it "Per Fess, Argent and Vert", the white would be in dexter. Really, the only visible difference is where the color separation is. Right across the middle it's really Per Fess, whereas close to the top, it's a Chief over a single-color field. But I'm just not sure in the case of the chief as to which color is suppose to come "first".
EDIT: as an aside, this is cool:
http://heraldry.sca.org/primer/variants.html ... I forgot all about fimbriation and voiding and all that.