Bob's your uncle vs job's a good 'un

Bob's your uncle

phrase
  • "No problem", "the solution is simple", "there you have it", "It's that easy", "you have what you want", "all will be well; indicates a desirable conclusion has been reached. 

job's a good 'un

phrase
  • Expresses satisfaction that a task has been or will be carried out successfully, often suggesting that the task is simple, or ironically implying that it has been completed in a cursory or slapdash manner. 

How often have the words Bob's your uncle and job's a good 'un occurred in a corpus of books? (source: Google Ngram Viewer )