The Big Bang Theory Season 9, Episode 10

Of course, I'm already seeing a more efficient way of taming the--

The Big Bang Theory Season 2, Episode 5

...which increase point-to-point drive time, making it the less efficient choice.

Money Heist Season 3, Episode 4

But efficient.

The Big Bang Theory Season 2, Episode 15

That seems a fairly efficient arrangement.

Game of Thrones Season 7, Episode 4

I always considered your father a very effective and efficient man,