In this technique, a manager devises a trading strategy, then uses computers to rake through the historical returns of the financial markets to see how well the strategy would have done.

WSJ: When Cheap Funds Cost Too Much

Any cash the NFL referees rake in through a 401 (k) is still green.

FORBES: The NFL Referees Move Closer To A Return

For about one week of the year, New Orleans officials and businesses go into overdrive to rake in the dollars that come parading through town.

FORBES: The Business of Mardi Gras

They make extra money helping their dad rake leaves in the fall and plan to start selling the toys they outgrow through a local twins club.

WSJ: How I Spent My Allowance: Twins Buy Toys, but Help Cats, Too