NC: Yes, definitely keep growing them, though certain ranks use them more than others

QUESTION: Which ones do you use most trying to get to Rank 10? What I mean is once I get to rank 3 or rank 4 or even rank 5, should I still be collecting red and blue bricks?
Well, TBD answered that pretty well.
Tip of the day!
Put your most important modules on the top row. ( Like your Millstone Hurling Module)
Excellent tip!
Also, try to vary your page in colors and patterns OR keep them the same general color with different shades; it's easier on the eyes and makes people more apt to click your page.