
It's USEFUL for calculating the number
of atoms in a substance,
The Big Bang Theory Season 9, Episode 10

Have you ever considered
trying to do something USEFUL?
The Big Bang Theory Season 4, Episode 20

so we thought it would be USEFUL...
The Big Bang Theory Season 10, Episode 13

Useful talent.
Game of Thrones Season 5, Episode 7

l'm not even USEFUL to myself.
Breaking Bad Season 4, Episode 3