Where are the other nine sewing tricks. I was only able to open one.
As someone who worked in the industry as a pattern drafter for over 24 years, I can tell you #5 and #10 are not at all true. ALWAYS sew at the recommended seam allowance. If you do not, you will be altering the size and fit. It’s unfortunate home sewer patterns are made with such wide seam allowances, but it is what it is and you have to use that. In the industry we put ON THE PATTERNS 1/2″ seam allowance and 3/8″ around necklines and 1/4″ around collar, cuff and placket edges that are being turned out. As for #10, never do we use a big board to iron on. It’s important to use the shape of a proper ironing board to facilitate construction pressing as you work and in the final press. Pressing can be the mark if a “home-made” or a professionally made garment. Learn how to do it right. All else mentioned were good.