Need help with the length of fabric that you cut when you start, it's 28inx2in then later it says fold in turnings & iron. This should then measure approx. 29inx1in what is meant by turnings, and how does it end up being 29x1in which by folding in half would give me the 1 in., how does it become 29x1in. and why does it look like elastic on the ends? It is also longer then is needed to run around the lid top. Do you run elastic all way through the long strip & how do you make the strip look neat at the end when it is to long. Tks. for any help, I am much better by watching people do this instead of reading. I do need help.