#10: Utility Knife Blades
Utility knives are a staple in many homes, often featuring a plastic body and a retractable blade for safety. Over time, the blade dulls, making people think it’s time for a replacement or a sharpener. However, there’s a lesser-known trick to revitalize your utility knife and extend its usefulness without purchasing new accessories.

provided by constative.com
The secret to a sharp utility knife is its design—specifically, its diagonal lines. These aren’t just for show; they’re your ticket to a fresh blade. Using pliers or the knife’s rear plastic mechanism to snap off the dulled section, you unveil a sharp edge, making your knife as good as new.