(as) easy as A, B, C

See: as easy as pie

• work up a sweat
• work up something
• work wonders
• work your arse off
• work your backside off
• work your fingers to the bone
• work your guts out
• work your magic
• work yourself into the ground
• work yourself up
• work your socks off
• world and his wife
• world is oyster
• world is your oyster
• world of difference
• worlds apart
• worm has turned.
• worm's eye view
• worse for wear
• worst-case scenario
• worst of both worlds
• worth a damn
• worth it
• worth its salt
• worth its weight in gold