A dime a dozen
The souvenir shops are a dime a dozen in New York City.
Something common
Give someone the benefit of the doubt
Peter's mom gave him the benefit of the doubt when he said he didn't break the window.
Trust what someone says
No pain, no gain
I am going to the gym twice a day and all my muscles ache, but you know what they say, no pain, no gain!
You have to work for what you want
Add insult to injury
My car broke down in the middle of nowhere, then, to add insult to injury, it started to rain.
To make a bad situation worse
Bigger fish to fry
Roger ignored the fact that his socks were mismatched. He had bigger fish to fry. Like the fact that he was going to be late for school!
Having bigger things to take care of than what we are talking about right now
A blessing in disguise
Being caught in that traffic jam was a blessing in disguise. If I hadn't missed the flight, I would have been on that plane when it crashed.
a good thing that seemed bad at first
Break a leg
Beth told her brother to break a leg as he went on stage at the talent show.
Good luck
Pull someone's leg
I think he was just pulling your leg when he said you've failed the exam.
To joke with someone
Break the ice
The class played a game on the first day of school to break the ice.
Make people feel more comfortable
Hit the nail on the head
Get something exactly right
Bite the bullet
To get something over with because it is inevitable
Cutting corners
Doing something poorly in order to save time or money
That's the last straw
My patience has run out
Comparing apples to oranges
Comparing two things that cannot be compared
Go on a wild goose chase
To do something pointless
Call it a day
Stop working on something
Go back to the drawing board
Start over
Under the weather
Sick
Don't count your chickens before they hatch
Don't count on something good happening until it's happened
Good things come to those who wait
Be patient
Beat around the bush
Avoid saying what you mean, usually because it is uncomfortable
Miss the boat
It's too late
A penny for your thoughts
Tell me what you're thinking
Get a taste of your own medicine
Get treated the way you've been treating others
It's easy