If you do something once in a blue moon
*If you beat around the bush
*If something is a no-brainer
If you go the extra mile
If you see eye to eye with someone
If something is a piece of cake
If something is a hot potato
A couch potato is
If you pay through the nose
If you do something by the skin of your teeth
If something is a far cry from something else
*If you have green fingers
If you bite off more than you can chew
If you get the sack
If you wish somebody to break a leg
If something is on your bucket list
If you call it a day
If you hit the sack
If you take something with a pinch of salt
If you go cold turkey
If you face the music
If you go Dutch
If something is not your cup of tea
*If you buy a lemon
If you are on cloud nine
*If something is as clear as mud