A dime a dozen

Origin

Imagine the bustling American marketplaces of the late 19th and early 20th centuries, where vendors hawked their wares with loud cries. When certain goods became incredibly abundant, perhaps due to efficient production or a bountiful harvest, they would be sold off cheaply to clear stock. To offer 'a dozen' of something—twelve units—for just 'a dime,' a mere ten cents, signaled absolute commonness. This wasn't a bargain for quality, but a clear declaration that the item was so plentiful it held virtually no individual value. The phrase perfectly captured the everyday experience of an item being utterly unexceptional and easily replaced, quickly moving from the merchant's call to become a widespread idiom for anything that lacks distinction due to its sheer quantity.