Chrysler's original workman's tool-box, with the tools he crafted himself, is still stored in the company's Detroit offices, like some sacred ark of the covenant.

ECONOMIST: Motor industry

Setting about the numbers with their econometric tool-box, Messrs Di Tella and MacCulloch not only do that but also control for everything they can think of, check for assorted biases and distortions, and consider different models of underlying economic behaviour.

ECONOMIST: Working man’s burden | The

Box.net started as a storage tool for employee-to-employee communication but was not focused on sending files across companies, Koon says.

FORBES: YouSendIt Launches File Syncing, Takes On Dropbox

Color, then, is another marketing tool, like an enticing image or well-written blurb on the back of a cereal box.

FORBES: Jelly Beans: Which Color Is Most Popular At Easter? Why We Love Colored Foods