I keep a plastic cereal container handy. When boxes of cereal get low, I empty whatever is left into the container. The combinations of cereals create variety and eliminate storing a lot of partially filled boxes.
You could also use the container to combine sweetened and unsweetened cereal to help cut down on the amount of sugar you eat…or mix a brand name cereal with its generic counterpart to stretch your cereal dollars. —Harriett Catlin, Nanticoke, Maryland