be state-of-the art

sth is a drop in the bucket

I wouldn't like to be in his shoes.

A penny saved is a penny earned.

It's a piece of cake.

get off cheaply

get off with a slap on the wrist

a toss-up

Speak of the devil!

add fuel to the fire

Let sleeping dogs lie.

It's all Greek to me.

We're all in the same boat.

pull so.'s leg

I have an axe to grind with her.

a back-seat driver

We're back to square one.

baker's dozen

You're barking up the wrong tree.

Don't beat around the bush!

once in a blue moon

crack so up

I'll keep my fingers crossed!

cry wolf

Lass Dich nicht unterkriegen!

Don't mind me!

Don't bother!