Cost an arm and a leg
When something is very expensive.
Better late than never
It’s better to do something late than not at all.
Cut a long story short
To get to the point, to not include unnecessary detail.
Couldn't care less
To show indifference to something or a total lack of interest.
Cut to the chase
To get directly to the point when speaking, to not give unnecessary detail.
Call it a day
To stop working on something.
Couch potato
A lazy person who doesn’t do much exercise and spends a lot of time on the sofa watching television.