Super glue is available in liquid and gel forms. Gels, which have added silica, work well for porous surfaces like porcelain, so they're great for fixing small chips in toilet tank lids or sink edges.

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 ...