Mine’s a little rusty, too, but I can put pencil to paper and get what I need.(Shades of high school algebra – I could get the answers right, just not the way they wanted me to!)But there are some ingenious, handy and free tools online, and we might as well take advantage of them, right? How much yarn?? http://www.woolfestival.com/articles/WPI.htm You’re… Continue Reading How’s your math?