I started making a pillow by casting 90 stitches onto straight needles. I thought the needles were pretty long, but apparently not long enough. I had to go buy circular needles and restart the project. No problem. I'm half done with with my pillow, but it's made me think. Eventually I would like to do some afghans. I'm sure that requires a zillion stitches to be cast on - that wouldn't even fit on the circular set I have. What exactly do you use when you are making a really huge project?