Every home gets unwanted visitors from time to time, like tarnish and rust; but because they come to visit, doesn’t mean they’re here to stay. In the kitchen, copper pots are ideal for cooking because copper is a good conductor of heat. But copper tarnishes, and it’s not easy to clean unless you know the secret. First sprinkle a thin layer of salt onto the copper, then apply a small amount of old-fashioned white vinegar with a spray bottle. The copper will brighten before your eyes. Don’t use too much vinegar or it won’t work. For rust stains on porcelain sinks and tubs, dip a pumice stick in turpentine (not paint thinner) and gently rub the rusty stain. And that's the On The House tip for today.