I just got a little booklet on how to make "toothbrush rugs" from a website in Colorado or somewhere and I seem to have been doing it all wrong.
This expert ("Aunt Philly") makes her rugs with two strips of rag simultaneously. I only use one strip, knotting it into the loops made in the previous row as I go along.
I am not bothered. Rug-making, to be correctly named, should result in a rug. My method does result in a rug, so presumably it is still rug-making.