Isn’t it a hassle lining soap molds?
An experienced Soaper can line a mold in less than 30 seconds. It is all about efficiency and organizing yourself and your supplies. When you cut bottoms cut a bunch of them. Make a template and cut 5 or 6 at a time with a razor blade knife. When you cut for the sides, have marks on your counter for the cutoff point. Do it in production fashion, and you will not only do it better but you will do it so much faster.