I've been using the Carol Doak method to PP for years now.....have tried many other ways and always come running back to this one. I use old postcards to line up along the fold line....for me, just an easy step. Then I push either the 1/8th or 1/4" ruler up to the hard postcard and cut. I make quite a few "tiny" blocks and this method works like magic to make sure my points are crisp and my little pieces fit.......I think this tute is a very good way to visualize how to do it. Just take it step by step and have fun......