We all know that buying larger quantities of supplements (bulk) is more cost-effective. But what if you only have one or two horses? Supplements, like grain, will spoil and mold in the summer or in hot humid climates. My money saving tip.... still buy "bulk" but divide up and place your supplements in Gallon Ziplock freezer bags and place them in the freezer. Take a bag out as needed. No more moldy supplements in the summer!