Cleaning product for tiles

To get rid of stains on your bathroom tiles, you'll need :
25g bicarbonate soda, 10cl ammonia, 5cl white vinegar and 1,5 liters of hot water.
Mix all of the ingredients together in a plastic bottle.
Put a label on it and keep it out of childrens reach.
Put it an a spray bottle and use a moist sponge to wipe.