answer:I am lucky to be able to buy grains, seeds and nuts in bulk (that is, from a bin with a scoop and a large bag) and pay by weight. I buy several lbs. at a time, fill a pint jar and keep in a cupboard. The rest I freeze in its bag. The jars I use are wide-mouth with lids and bands. They seal tight enough to keep the moths and weird bug larvae out. Available at any hardware store. Ball jars. I buy a box of 12 jars. They come in other sizes. have at present quinoa, steel-cut oatmeal, oat bran, amaranth, brown rice, barley, flax seed, sesame seed, chia seeds, lentils (red and brown), split peas (yellow and green), walnuts, almonds, cashews, black, white and navy beans and several mysterious things whose labels have fallen off. Those I will probably compost. I no longer use flour or corn meal but they can be stored the same way.