out of hand
out of control
the early bird gets the worm
the first people to get there will get the best stuff
It is a piece of cake
Under the weather
You are sick
a dime a dozen
very common
break a leg
good luck
let the cat out of the bag
tell a secret
To tell the secret or information that you know
Head in the clouds
Not paying attention
better late than never
it is better to be late than not show up at all
cost an arm and a leg
very expensive
kill two birds with one stone
to get two things done by doing one thing
Put all of your eggs in one basket
Taking a risk or doing something risky
Rain on someone's parade
to ruin or spoil something
beat the clock
to finish something before your time is up
by the skin of your teeth
just barely
go on a wild goose chase
to do something pointless
Don't cry over spilt milk
there is no reason to be upset about something that you can't change
Once in a blue moon
Rarely
time is money
work quickly
wrap your head around it
to understand something hard
the problem being avoided
Comparing apples to oranges
Comparing things that can't be compared because they are too different
A perfect storm
the worst thing possible
right on the money
exact or correct