She always ______________ important documents in a secure and fireproof safe.
squirrels away
John had a habit of ________________ spare change in a jar, and it added up to a surprising amount over the years.
squirreling away
When it comes to saving money, I should really _______________ my frugal sister's ________ - she's great at budgeting and living within her means.
take a leaf out of sister's book