Could this finally be the pencil that never needs sharpening? The Accumark Carpenter’s pencil is actually just the lead, but it’s shaped like a razor blade and can be inserted into any standard utility knife. No matter how worn down it is, it consistently makes the same thin line (.025 inch). And — same as with a knife — when one side gets used up, you can just flip it and use the other side. It will soon be available in a variety of colors. Price: Three for $5. www.praziusa.com.