The idea of shopping at a dime store, also called a five-and-dime, might evoke a certain American era and remembering such stores, such as those owned by the F. W. Woolworth Co., might reveal a person’s age. The simple matter of inflation has caused dime stores to be replaced by dollar stores, also named for the typical price of the merchandise sold.
But dime-store still turns up in English as an adjective describing something of low quality:
To cope, our narrator narcotizes herself with everything late capitalism has to offer: ’90s movies, shopping and, finally, actual narcotics, with the help of a dime-store psychiatrist who, while writing her prescription after prescription, tells her that meditation has been proven to help insomniac rats.
— Megan O’Grady, T Magazine, 10 May 2018
The word can continue to modify merchandise, such as “dime-store jewelry,” but just as frequently describes something not up to the quality of a professional, such as “dime-store legal advice.”