In order to save water, only flush the toilet after defecation, not after urination.

Alternative form of strike while the iron is hot

I did not cause the problem. / (by extension, informal) I did not cause it (regardless of whether the subject matter is perceived as problematic).

(informal) It's a deal (used to show agreement to meet at a certain time and place)

A highly successful person in a particular field will inevitably suffer from a feeling of isolation.

Society is organized in a manner that gives preferential status to males; most positions of authority are occupied by men.

(idiomatic) Used as an excuse for drinking alcoholic beverages outside of customary hours.

(US) Said when others seek to restrict one's behavior as a way of pointing out that an action is not illegal or forbidden.

(literally) The job is a particularly difficult and undesirable one. / (colloquial, ironic, humorous) The role or assignment is a particularly attractive or desirable one.

(idiomatic) To make things worse for someone in an adverse situation.