I don't remember where they've all come from. I've snipped them out of new clothes - extras that will never be used. I use them, from time to time, and there are some wonderful old ones in there too. Those are the ones that smell slightly mildewy. When did clothing companies become so obsessed with providing extra buttons? It is a coincidence that they provided extra buttons and, at the same time, buttons seemed to be carelessly sewn on new garments? I clearly remember, sometime during my teen years, buying a new coat, with my mother, and days later discovering that not a single button was sewn on properly.