You're wearing your favorite white shirt and you swipe up against something rusty. Now you're wearing that, too. Bleach is great at removing chocolate, ketchup and coffee stains, but it only makes rust stains more permanent. What's a girl to do? Lemon juice to the rescue!
Just boil some water in a tea kettle or on the stove and wet the rust stain with lemon juice. Hold the stained area directly over the steam for a few minutes, taking care not to get a steam burn. Then just wash the garment as you normally would.