A method and system for optimizing cutting of various materials. In some embodiments, an algorithm optimizes cutting by grouping items to be cut, wherein a plurality of cutting-stock pieces are grouped together and aligned such that a single cut simultaneously cuts items from all of the pieces. Some embodiments optimize a combination of reduced labor cost, reduced materials cost (e.g., reducing scrap), and/or reduced time needed to obtain an inventory of pieces cut to specified lengths and shapes (checking the various permutations). Overall optimization of labor and material is achieved by a combination of fewer cuts and reduced waste. Some embodiments include a computer-readable medium having instructions executed by a computer that optimizes placement of cuts to obtain cut-part items, and optionally controls a saw, laser, water-jet cutter or the like. In some embodiments, a human operator making the cuts is instructed by the computer to achieve the optimization.