Abstract: A can stacking method includes inserting a can stacker insert between each pair of cans in a stack. Each insert has a maximum side to side dimension which is slightly less than the diameter of the cans being stacked and a thickness which is preferably equal to or greater than the combined depth of the peripheral flanges surrounding the top and bottom ends of each can. Each insert, due to its combined thickness and diameter, serves to prevent the cans in the stack from shifting horizontally relative to each other, thus maintaining the can stack in vertical alignment. The inserts can be made in a variety of decorative shapes and styles and can also incorporate indicia such as advertising and inspirational or humorous messages, etc.