rake and scrape vs watch the pennies

rake and scrape

noun
  • A type of traditional Bahamian folk music, characterized by a reliance on improvised musical instruments, such as a ripsaw. 

watch the pennies

verb
  • To be careful about how much one spends; to try to save money wherever possible. 

How often have the words rake and scrape and watch the pennies occurred in a corpus of books? (source: Google Ngram Viewer )