David Rees thinks he knows how to sharpen pencils. He says people have entrusted 1,500 pencil points to his sharpening business. I know a little something about working with sharp pencils, and let me ...

There’s no sense in carrying a knife if it’s not going to be as useful as possible. And a blade’s utility often comes down to its ability to cut. When ripping open a box, slicing that piece of rope, ...