Shrewd collectors invest in eternal objects like art dolls, antique furniture and Pokémon cards. ‘Forever’ treasures that will likely increase in value as they hang on walls, gather dust on shelves or exist hidden from the world behind a lock and key until the next time they go under an auctioneer’s hammer. Not me. I am among the rarest of collectors, hoarding what are, in essence, perishable goods - eyeshadow palettes. With a lifespan that can be numbered in just a few shor