Back when I was making the Weekender Bag by Amy Butler I got a little frustrated. There was 1-2 little parts that didn't make sense. One was the hard plastic sheeting you needed for the false bottom. The directions said you need one sheet but you need to cut two pieces out of it. Unfortunately the dimensions of the plastic sheet and the pieces you needed to cut didn't match up. There just wasn't enough plastic sheeting. The second issue was it was impossible to cut all the pieces I needed out of the interfacing. I ended up piecing it and I think it turned out great, but I wasn't sure if that was what I was supposed to do.