If you have a pattern you make a lot and you already know the ins-and-outs of the general sewing but always drag your feet when it comes to making the final marks for buttonholes and other finishing details, make a template to keep with the pattern. Also be sure to note any of the regular measurements you use. We find that a 3.5″ buttonhole spacing is perfect for dress shirts, so that is the spacing we use on ALL dress shirts or garments that are in the dress-shirt-adjacent family. Just make a template and a note about details and off you go.
We use a Pfaff 130 and mechanical Singer buttonholer for all of our dress shirt buttonholes, but it can be a real pain to get the center-front marked and get the buttonholes spaced right. So this template allows the buttonholes to Fall where they need to without chalk marks.
So this little template is a good way to make sure you don’t have to wrestle with chalk transfer paper or tailor’s chalk.