Sometimes complications over the licensing of other artists' work can hold things up.

FORBES: Music's Online Holdouts

Late Friday, Miami-based Ivax (nyse: IVX - news - people ) said it had received tentative approval to sell generic versions of diabetes drug Glucophage, despite brandmaker Bristol-Myers Squibb (nyse: BMY - news - people ) trying to hold things up with discussions regarding the generic drug's label.

FORBES: FDA Stands Firm On Generics

They will fetch and carry parts, hold things, pick up tools, sort items, clean up and make themselves useful in myriad other ways.

ECONOMIST: Automation