The clip of the present invention comprises a main body having opposed front and rear faces, opposed first and second side ends and opposed top and bottom ends. The first side end has a first channel or groove formed therein and the second side end has a second channel formed therein. The length of the first channel is greater than the length of the second channel and the height of the second channel is greater than the height of the first channel. The top side of the main body has a first lip portion formed thereon and the bottom side has a second lip portion formed thereon. The first and second lips extend generally outwardly in the same direction relative to a face of the main body.