When the wife made a hole, she'd yell what color it was and I'd circle it. I then used the studs as row separators, and I counted how many of each color were in each row. I originally did the counting just to keep track of everything, but I ended up using those numbers to organize the strands later. There were 6 rows total. If we encountered a dot on the ceiling that was in a stud, I just had her move it over an inch one way or the other.