Wax stains: scratch the surface of the stain with a spoon; cover the stain with absorbent paper and pass the iron (pay attention to the iron must not go directly into contact with the carpet!); repeat the operation until the wax is completely absorbed by the paper as part of Carpet Cleaning Warner.
Stains due to chewing gum: surround the gomma to chew with ice in plastic bags; when the rubber will be frozen, crush it and collect the pieces (not with a vacuum cleaner); this method applies to other types of solid spots. Ink stains: absorb the stain with absorbent paper and then wipe a cloth soaked in warm water; repeat the operation until the stain is erased. Ammonia and detergent can be added to the dampened cloths in case the stains are particularly hostile.
In any case, it is necessary to never rub the carpet, but dab it with calm and regular movements, otherwise the stains will end up expanding even more.