Home Slickdeals Walmart: Mainstays 8-Cube Bookcase (White or Espresso) $39 + Free Shipping (Reg.... Slickdeals Walmart: Mainstays 8-Cube Bookcase (White or Espresso) $39 + Free Shipping (Reg. $79) By ARCOM - 6 August 2018 188 0 SHARE Facebook Twitter Go to the deal page: Walmart: Mainstays 8-Cube Bookcase (White or Espresso) $39 + Free Shipping (Reg. $79)