In 1914, Congress officially made the second Sunday in May "Mothers' Day." Ever since on that day, sons and daughters have resolved to do something special for mom -- things such as visiting, taking her on an outing or having her over for dinner. This year, if your plan is dinner at home for mom, and the family silverware is looking shabby and tarnished, from nonuse and storage, we have a simple solution. From deep within the Carey Brothers' vault of how to be tarnish-defiant, we bring simple "shiny science." When silver's shine has gone away, here's the way to save the day: First, cover the bottom of a heat-resistant glass dish with aluminum foil -- shiny side up. That's important. Place the tarnished silver on the foil, add 1 teaspoon of baking soda and pour in enough boiling water to cover it. In no time at all, the tarnish will be off the silverware and on the foil. For more tips, visit our Web site at onthehouse.com. And that's the On The House tip for today.