Picture this: You’re making cookies for a holiday get-together, and things have gotten hectic in the kitchen. You’ve opened the oven door, donned the oven mitts and grabbed a hot metal tray of warm snickerdoodles. You turn around to place them on the countertop and… whoops, you forgot to prepare something for the tray to rest on. As you weigh your options, you notice that some trivets have started to move out from their storage space on the counter. They’re rolling, on their own, right into place.
It…
