what's a product that you hold onto for sentimentality's sake?

i'll start first - i still have a blush that i bought from the first time i visited south korea with my parents. it's an innisfree one that is a pale baby pink - and over the years the compact has been dropped so many times that the tiny hinge broke and the cover detached. but i just can't bring myself to throw it away since k-beauty was my first foray into cosmetics and makeup overall