There are many synonyms for the phrase "don't mention it," which is typically used as a polite way of indicating that something was not a bother or that there's no need for thanks. Similar expressions include "not a problem," "no worries," "you're welcome," "my pleasure," "anytime," "happy to help," "no big deal," "it's nothing," "think nothing of it," and "don't sweat it." Other variations might be context-dependent, such as "don't mention it to anyone else," "let's keep it between us," or "let's put this behind us." Regardless of the phrasing, the sentiment is often an expression of generosity, humility, or service, and it reflects well on the speaker's character.