be all in a day's work

To be normal and ordinary. This phrase is often used humorously to minimize an aspect of one's job that is particularly good or bad. Oh, solving technological crises is all in a day's work for those of us in IT. I can't believe I had to unclog a toilet today, but it's all in a day's work, I guess. Dealing with screaming kids is all in a day's work when you're a pediatrician.