By scheduling a client meeting at the co-working space, I can kill two birds with one stone: finalize the contract and inspect the new office layout.

By scheduling the meeting at lunch, he was killing two birds with one stone: discussing the project while reviewing the budget.

She killed two birds with one stone by finishing her report on the train and answering emails at the same time.

She kills two birds with one stone by taking the train, finishing her book during the commute and avoiding rush-hour traffic.