Omg, i'm totally disgusted and amazed at the same time with what I found in my sewing machine! I decided to finally clean this puppy out with the little brush that it came with and oil her up since the last time that I had done so was like, well never. My fault, shame shame, I know. Look what I found! It doesn't look like much, but that entire clump was jammed between those two rings inside the inter-workings of my lovely Brother XL-3100. Spring cleaning is now totally complete. Have you begun yours yet?