You won’t have to put up with a dull knife because you don’t want to dig out the knife sharpener if you have the Joseph Joseph Slice and Sharpen Cutting Board.  The plastic cutting board has a knife sharpener built in to the handle.  When you need to sharpen your knife, just stand the board on it’s non-slip edge and run the knife through the sharpener.  The board measures 15″ x 11″, and it’s available in green or black.  The Joseph Joseph Slice and Sharpen Cutting Board is $18.00 at Sur La Table.