“In short supply”

“A dead end”

A situation with no progress or solution.

“No strings attached”

Without special conditions or obligations.

“A close shave”

A situation where danger or failure was narrowly avoided.

“A fighting chance”

A reasonable possibility of success.

“Nothing to write home about”

Not special or impressive.

“Nail down”

To finalize or clearly define something.

“Night and day”

Completely different.

“A clean break”

A complete separation from a person, place, or situation.