Idioms can be a powerful linguistic tool only when they are used in the right way in the right places.
on a shoestring
with very little money
The man started his new company on a shoestring.
List of common idioms, their meanings and examples of their usage in sentences
An expression in the usage of a language that is peculiar to itself either in having a meaning that cannot be derived from the conjoined meanings of its elements or in its grammatically atypical use of words.