Another tip is to seal your woolens/natural fibre clothes (e.g. silks) inside plastic bags and put them in the freezer for a few days as this will kill off any larvae that may be present (much like caterpillars on your veg it is the larvae that do the damage, not the moths). Once you take them out of the freezer, keep the clothes in the bags until you need to wear them. Dry cleaning is the alternative (but far more expensive) route to clearing the larvae from your clothes.
Note, the tell tale sign of a larvae is patches of small holes in your woollens, especially cashmere. On darker clothing you can see silken webbing where the larvae has been (or may still be) near the holes.