yeah, I know what that phrase means, but my question is:<br/>what other phrases can be used interchangeably with the above mentioned? <br/><br/>it's just at a tip of my tongue, that I can't think of. So, in term of word choice, this just limit myself to only "work as a charm" most of the time. <br/><br/>something starting with the same formation like, "work as a (sth.)". or "work like (sth.)"<br/>often spotted in the news.<br/><br/>any advice would be very much appreciated.