life’s a beach
Meaning: life is good or easy
Example: I won the lottery last week and now life’s a beach for me
a beach bum
Meaning: someone who spends a lot of time at the beach (usually negative)
Example: He’s always surfing instead of doing his homework – what a beach bum!
not the only pebble on the beach
Meaning: not the only important person in a place or situation
Example: She’s a manager now but she’ll have to remember that she’s not the only pebble on this beach – there are lots of other managers in the company
take sand to the beach
Meaning: a pointless activity
Example: She has so much perfume, buying her another bottle would be like taking sand to the beach