Yes I do. I am good about my rotary blades and needles, only because I cut a LOT not just for me but my mom and several of her friends. Needles because I have had that drummed into me by my LQS and yes it does make a big difference. I am terrible about getting my scissors sharpened and have notice my rulers lately - wondering how I could have done that. One other that I am trying to do is to weed out my threads that I don't like or my machine doesn't like as well - why can I not just throw out a spool!