Fraying carpet is a common problem in households due to various reasons such as poor installation, heavy furniture movement, and pet scratches. It is important to repair frayed edges as soon as possible to prevent further damage. Techniques to prevent fraying include using binding tape, carpet grippers, and furniture sliders. To repair frayed edges, first measure and mark the carpet with chalk before cutting it straight using a utility knife. You can also delay or prevent carpet edges from fraying by installing carpet edge trim, using carpet tape, and regularly vacuuming the area.