Clark was in the mall recently when he saw someone in a life-sized cartridge costume. This isn’t a joke. The man was wearing the costume because Cartridge World had opened its 1,000th store. The company – and others like it - is going great guns because of its operating model, which is patterened after Gillette. Gillette basically sells the initial razor at a loss and then charges and arm and a leg for the blades. Cartridge companies know you need to refill your printers with new printer cartridges. These discount companies basically refill old cartridges, package them and then sell them for half of what the major companies would charge. Clark is fine with you doing this because the cartridges work just fine and cost much less. The quality may be a little lower with refill cartridges, but it’s all a matter of perspective.