nickel and dime

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective US, idiomatic, colloquial Small time; operating on a small scale; involving small amounts of money; petty or cheap.
• verb US, idiomatic, colloquial To charge, or be charged, several unexpected small amounts of money, often in the form of fees, taxes, or related expenses to a venture, which when taken as a whole add up to a significant unexpected cost.
• verb US, idiomatic, colloquial, figuratively To wear down in small increments; to quibble or obsess endlessly with (someone) over trifles.
• noun US, slang Fifteen years.