I am also excited to see others weaving in the Navajo way. I was taught to twist the edging about every 15-20 rows. However, I have not been following that rule. I am not sure why I do it the way I do- probably because I forget to twist them initially and them end up following the pattern I established at the start.
I have not even started to think about my next rug. I usually spend at least a month thinking, planning, looking a books and pictures, before I settle on a general idea. Then, I will need to do a lot of spinning to get ready...