To keep one's nose to the grindstone
To do hard, continuous work .
To cut corners
To do something in the easiest, cheapest, or fastest way.
To earn chicken feed
To earn a very small amount of money.
To keep one's mind on the job
To continue thinking about, concentrate on, or remain focused on something.
To have a finger in every pie
To be involved in and have influence over many different activities, often in a way that people do not approve of.
Through thick and thin
In good and bad times.
To do the donkey work
To do the hard or boring work.
To work to rule
A form of protest in which employees do exactly what is stated in their contracts, and nothing more, in order to slow down production.
To be in the red
To be spending more money than you earn.
To call the shots
To make the important decisions.
To give someone green light
To give permission for something to happen.
To get something off the ground
To make something successful.
To be in the black
To be earning more money than you spend.
To make ends meet
To have just enough money to pay for the things that you need
To make a killing
To make a lot of money.
To make a living
To earn enough money to buy the things that you need.
To cost an arm and a leg
To be very expensive.
To work banker's hours
To have a short working day.
To beaver away at something
To work hard for a long time.
To be a workhorse
A person who does a lot of work, especially of a type that is necessary but not interesting.
To splash out
To spend a lot of money, especially on things you don't need.