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Cups and Mugs
If you have white cups and mugs, you will probably be sick of the brown stains left on the inside by tea and coffee. These are easily removed in a number of ways: either sprinkle some baking soda inside and then rub gently with a soft wet cloth, and the stain should come off easily. Or put a wedge of squeezed lemon into the cup and fill it with boiling water, then let it soak overnight. The stain should come off when you wash the cup in the morning. If the stains are very stubborn, you may need to soak them in a dilute bleach solution (eg, 1 teaspoon cholorine bleach in 1 cup of water) for about an hour, although this does leave a strong odour of bleach. Alternatively, you can dissolve a tablespoon of washing soda crystals (not baking soda) in warm water and leave it to soak for an hour - the brown film should then simply wipe off.