A method of increasing the stability of a corrugated display apparatus defining a plurality of lower openings and having a plurality of walls at least partially defining a plurality of channels, each with a channel width, spanning from one of the plurality of lower openings toward an upper end of the display apparatus, the method including providing a cutting device with a handle length and a blade member coupled along the handle length, cutting a portion of at least one of the plurality of walls with the blade member to combine two of the plurality of channels adjacent to the cut portion of the at least one of the plurality of walls to create an enlarged channel, and inserting a post-like member into the enlarged channel, the post-like member securely retained within the enlarged channel.