Patent ID: 7540835

Claim:
A method of folding a sheet comprising: arranging the sheet in a chamber at least partly formed by a plurality of walls, wherein the plurality of walls are hingedly coupled together, wherein the plurality of walls are adapted to be arranged in a first configuration in which the plurality of walls at least partly define a chamber adapted to receive a sheet, wherein the plurality of walls are also adapted to be arranged in a second configuration in which the chamber is substantially collapsed, wherein one of said plurality of walls includes a first segment and a coplanar second segment, wherein at least part of the first segment is adapted to be within the second segment in a first telescopic position, outside of the second segment in a second telescopic position, and the first and second telescopic positions are coplanar; removably attaching at least a first portion of the sheet relative to at least one of the plurality of walls before collapsing the chamber such that the first portion remains removably attached relative to the at least one wall at least partially while the chamber is collapsed; and collapsing the chamber.