draw a long bow

a little of something goes a long way

Only a small amount of something is usually required to produce a great effect.

a week is a long time in politics

In politics, much change can occur in a short space of time.

another string to one's bow

Another skill, ability or resource to be used in case of failure.

as the day is long

Unceasingly; very; thoroughly; to a very high degree.

bow and scrape

To behave in a servile, obsequious, or excessively polite manner.

bow down

To bow, to bend oneself as a gesture of deference or respect.

bow down before the porcelain god

Synonym of worship the porcelain god (“to vomit into a toilet bowl”).

bow out

To resign, or leave, with one's credibility or reputation still intact.