Takes the brassiness out of dyed blonde hair, so your color stays fiercer than Draco Malfoy's.
Plants an urgent reminder in the head of that oh-so-forgetful friend who borrowed your favorite perfume and needs to return it stat.
Brings back your favorite discontinued beauty products whose losses haunt your soul like Moaning Myrtle.
Materializes a layer of deodorant on your pits on those mornings when you're rushing to get to Herbology class and forget to put it on.