Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. December 29, 2016 Add ...

Peggy’s guest, Ella Pritsker, demonstrates easy and efficient methods of zipper installation. The Automatic Continuous Clothing Closure, commonly called the zipper, was first invented in 1917. Sewing ...