A dime a dozen
What is something common
Call it a day
What is stop working on something
Miss the boat
Under the weather
What is to be sick
Pull yourself together
What is to calm down
Give someone the benefit of the doubt
What is to trust what someone says
Your guess is as good as mine
What is I have no idea
Break a leg
What is good luck
To get bent out of shape
What is to get upset
So far so good
What is things are going well so far
Beat around the bush
What is avoiding saying what you mean to say
Get your act together
No pain, no gain
What is work hard for what you want
Cut corners
What is doing something poorly to save time or money
Make a long story short
Tell something briefly/quickly
Easy does it
What is to slow down
Hit the sack
What is to go to bed
On the ball
What is to do a good job
Pull someone's leg
What is to joke with someone
Get out of hand
What is to get out of control
Better late than never
What is better to arrive late than to not arrive at all
Go back to the drawing board
What is to start over
You can say that again
What I agree; that's true
The best of both worlds
What is a great/ideal situation
It's not rocket science
What is something not complicated