The first phone operator started work on this day in 1878. Her name was Emma Nutt. In 1842, a machine was patented to mass-produce nuts (what a segue!) and bolts. So, let’s talk fasteners -- like nuts and bolts and screws -- and how to decide which to use. Screws have better holding power than nails and different threads for various materials. There are flat- and round-head screws with slots, sockets or hexagon heads. Screws can be driven in with power tools, but nuts and bolts are stronger. And they're easy to remove, with little damage. There are different types for different jobs, and nuts and bolts can be power-tightened, too, or easily removed the same way. So next time before you start hammering nails, stop and ask yourself: "would a screw work better or maybe a nut and bolt?" And that's the On The House tip for today.