One way of keeping them for future use is to cook them up in a little olive oil with some optionally some fresh chopped chilli (if you like chilli) then to freeze it in thin sheets. Break the sheets up a bit and store in a bag in the freezer, chuck them onto the frying onions when yo're making somethng that needs it.... one pan of chilli ad garlic and one of jsut garlic will do for a lot of dinners down the line...