ply your trade
ply one's trade

"You came looking to ply your trade but instead, fell back on instinct.

Plying your trade in the public eye has never been one of your favorite things.

"Why will you not deign to ply your trade?"

It's much harder to ply your trade over here," Friedel told the BBC. "

If someone offered you a job where you got to ply your trade more the way you wanted to, work less and make more money, what would you say?

Let me put it another way - is there an incentive, if you are a counterfeiter, to ply your trade in one state rather than another because the sentences there are less severe?

"I suppose plying your trade in a Klingon-built ship could lower your profile quite a bit out in places like Gamma Hydra," Reed said in a tone that suggested he was beginning to appreciate the other man's tactical instincts.

"I was standing at the Miramax party at the Oscars and Mort was there with one of Michael Douglas's ex-wives, and he pulled me aside and said, 'Have you considered plying your trade in New York?' "

You have a perfect right, as a Briton, to ply your trade as a ski instructor in Courchevel - and if some French union of ski instructors tries to block you, then you have single-market legislation to protect you.