Measure four pieces of cardboard to fit the length of the box or container you will store the ornaments in. The pieces should also measure 4 inches wide.
Cut six other pieces of cardboard to fit the width of the box, also 4 inches wide.
Mark every 3 inches along each piece of the longer cardboard. Cut a slit along this mark. Place the pieces with the slits facing up in the container.
Mark every 3 inches along each piece of the shorter cardboard. Cut a slit along this mark. Place the small pieces with their slits facing down into the box creating squares. The squares are where the ornaments will sit in.