I have the harbor freight blades and have been very happy. For the few I have had to toss it still works out a lot cheaper than the brand name blades. As for thread, my thoughts are I am making a gift for someone. I want this gift to last and hold up to the many washing and all the love. I took the time to pick the fabric and the pattern why would I skimp on the thread to construct it. I use Aurifil thread because it is the best. I buy my large cones from Sue's Sew Ez Designs. I purchase the black and white large cones for $30 each. Great price. I find if I use certain thread brands my machine is a pain in the butt. Rather than deal with the breaks, lint and knots I would rather enjoy the process and not the constant maintenance that comes from these brands. Lucy may not know what brand the thread is but she still lets me know if makes her ill.