work like a charm

Idioms  

1. Function very well, have a good effect or outcome, as in That knife-sharpener works like a charm, or Her deferential manner worked like a charm; he agreed to everything they'd asked for. This expression uses charm in the sense of “a magic spell.” [Mid-1800s] Also see work wonders.

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Example Sentences

For TVs and bigger monitors, these wipes from Weiman work like a charm.

From Fox News

The result: there's no onboard method for recording, but there are third-party apps that can work like a charm.

From Fox News

Inspired, D'Entremont told her daughters to put on their glow-in-the-dark Halloween pajamas and lie very still below a ceiling light to “charge” the outfits, and the ploy proved to work like a charm.

From Fox News

Will this Halloween brew cast a hex or work like a charm?

From Seattle Times

I wear them in airports and planes and they work like a charm.

From New York Times