The ChefsChoice Trizor XV is the best knife sharpener we’ve found: It’s easy to use, durable, and puts an exceptional edge on many types of knives.

You can swap in a new box cutter blade if the edge is worn out, or you can sharpen your dull utility knife to give it more life. This is a sensible option if you don't have blades on hand.

To understand the difference between honing and sharpening, you have to understand how a knife blade works. Even the thinnest, smoothest looking blade is serrated, you just can’t see the teeth.