cheat sheet

cheat on

To be unfaithful to, especially in a romantic relationship.

dope sheet

A summary, ordinarily in the form of a document, containing important facts and background information concerning a person, activity, or other subject matter.

fast sheet

A hotel or similar establishment catering to prostitutes.

hot sheet

A list of items of high current interest.

silver sheet

By extension, movies, the film industry, or that which is related to movies or cinema (often preceded with "the")

sing off the same hymn sheet

Alternative form of sing from the same hymnbook.

start with a clean sheet

To begin something anew, without being hindered by past mistakes, problems or biases; to start all over again.

start with a clean sheet of paper

Synonym of start with a clean sheet.