Great to see you on this site, Kelly! You know me from the Double-Knitting Group on Yahoo.
People, Kelly is the expert on flatfold/tubular double-knitting and is trying to get a book published on the technique - any progress with that, Kelly? I have made one of her designs - a mug warmer/wrist cuff, which was quite easy, once I got my head around the instructions. I had a bit of difficulty with the bind-off instructions, but eventually figured it out. I have other patterns of her's as well, but haven't started on those yet.
Whoever of you is having a go at this technique, have fun with it! It's basically work one stitch, slip one stitch alternately across the row.