Did you use lemons as a holiday centerpiece? Are you now wondering what to do with an enormous pile of the fruit? You could eat an ocean of fish, drink lethal amounts of espresso, or you could usher in the new year with this natural whitening tip from Martha Stewart Living: To whiten cloth napkins, linens, and even socks, fill a large pot with water, and drop in several slices of lemon. Bring to a boil, then turn off the heat. Add the linens, and let them soak for about an hour. Then launder as usual. Have you experimented with this citrus trick? Jump down to share your results and to find out one of our concerns... Socks are one thing but we're wondering if the boiling water might be too harsh for some of our more delicate linens. Obviously, we haven't tested this method yet but we're always curious about ways to brighten our dingies that don't involve bleach. So...?