A blessing in disguise - something that seems bad at first but turns out to be good
A dime a dozen - something very common and easy to get
Actions speak louder than words - what a person does is more important than what they say
Add insult to injury - to make a bad situation worse
All ears - fully listening and paying attention
All thumbs - clumsy or awkward with your hands
Back to square one - to start over from the beginning
Barking up the wrong tree - to pursue a mistaken or misguided course of action
Beat around the bush - to avoid talking about something directly
Bite off more than you can chew - to take on more responsibility or work than you can handle
Break a leg - good luck (often used in theater)
Burn the midnight oil - to stay up late working or studying
Cat's out of the bag - a secret has been revealed
Caught between a rock and a hard place - in a difficult situation with no good options
Costs an arm and a leg - something is very expensive
Cry over spilt milk - to worry about something that has already happened and cannot be changed
Cut to the chase - get to the point without wasting time
Devil's advocate - to argue against something for the sake of debate or discussion
Don't count your chickens before they hatch - don't assume something will happen before it actually does
Don't put all your eggs in one basket - don't rely on one single plan or source of income.
Every cloud has a silver lining - there's always something positive to be found in a negative situation
Fish out of water - feeling uncomfortable or out of place in a new or unfamiliar situation
Fortune favors the bold - taking risks can lead to good fortune
Give the benefit of the doubt - to believe someone's explanation or excuse, even if it seems unlikely
Go the extra mile - to put in more effort than is expected or required
Head in the clouds - not paying attention or being unrealistic
Hit the nail on the head - to be exactly right about something
In a nutshell - summarizing something briefly
In the heat of the moment - making a decision or reacting without thinking clearly
It's raining cats and dogs - raining heavily.
Kill two birds with one stone - to achieve two things at once
Let the cat out of the bag - to reveal a secret
Like a chicken with its head cut off - to act in a frenzied or panicked way
No pain, no gain - you have to work hard to achieve success
On thin ice - in a risky or dangerous situation
Pull someone's leg - to tease or joke with someone
Put all your cards on the table - to be open and honest about your intentions or feelings
Put the cart before the horse - to do things in the wrong order
See eye to eye - to agree on something
Spill the beans - to reveal a secret.
Take a rain check - to decline an offer, but suggest doing it at a later time
The ball is in your court - it's your turn to make a decision or take action
The best of both worlds - to have the advantages of two different things at the same time