IRON IN THE FIRE

n. phr. Something you are doing; one of the projects with which a person is busy; job, John had a number of irons in the fire, and he managed to keep all of them hot. Usually used in the phrase "too many irons in the fire". "Ed has a dozen things going all the time, but none of them seem to work out." "No wonder. He has too many irons in the fire."