hi Lido,
I am not sure if there is a Sam's club near to you're house. I have been to a few Sam's in different states and they all carried IDY. It is in the baker aisle near the flour of coarse. It comes in two 16oz. packages for about $3.00. It should be stored on the freezer or cooler and kept sealed. This stuff could last you a couple of years or as long as the date will allow. Chiguy