A blessing in disguise
a good thing that seemed bad at first
A dime a dozen
Something common
Beat around the bush
Avoid saying what you mean, usually because it is uncomfortable
Better late than never
Better to arrive late than not to come at all
Break a leg
Good luck
Call it a day
Stop working on something
Cut somebody some slack
Don't be so critical
Cutting corners
Doing something poorly in order to save time or money
Get out of hand
Get out of control
Give someone the benefit of the doubt
Trust what someone says
Go back to the drawing board
Start over
Hit the sack/hay
Go to sleep
It's not rocket science
It's not complicated
No pain, no gain
You have to work for what you want
Pull someone's leg
To joke with someone/not serious
Let someone off the hook
To not hold someone responsible for something/No longer blame them or criticize them
Pull yourself together
Calm down/Focus
On the ball
Doing a good job
To get bent out of shape
To get upset
Miss the boat
It's too late/To get something completely wrong
Speak of the devil
The person we were just talking about showed up!
The best of both worlds
An ideal situation/ A situation that benefits a person both ways
Wrap your head around something
Understand something complicated
That's the last straw
My patience has run out
We'll cross that bridge when we come to it
Let's not talk about that problem right now/We will deal with that problem later or when it occurs...