bring sand to the beach(redirected from brought sand to the beach)
bring sand to the beach
To do or undertake something redundant, pointless, or futile, usually in the context of bringing something to a location where it is abundant or unnecessary. The company always caters lunch for these meetings, so I don't know why you bring in your own sandwich. You might as well bring sand to the beach!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.