Next time this happens, use some super glue to repair the crack, then once it’s dry, use a file to smooth it out. Old toothbrushes are great for gluing and avoiding a mess. When your toothbrush ...

Super glue, or cyanoacrylate as it is formally known, is one heck of a useful adhesive. Developed in the 20th century as a result of a program to create plastic gun sights, it is loved for its ...