Favorite tip from this board = Using leaders and enders. My thread usage has been cut in half, I swear.
Along that same line, someone posted to keep a container of 1.5" or 2" scrap squares by the sewing machine & sewing them together as you need a "leader or ender" - - It's like making 2 quilts at one time. THAT was a great idea, and one I never would have thought of on my own.