stick to knitting
Also found in: Dictionary, Thesaurus, Medical, Encyclopedia.
stick to your knitting
if a person or company sticks to their knitting, they continue to do what they have always done instead of trying to do something they know very little about He believes the key to a company's success is to stick to its knitting rather than trying to diversify.
stick to (one's) knittingInformal
To mind one's own business.