Once in a while, it can be helpful to mix up your phrasing and word choice to keep your writing fresh. If you find yourself overusing the phrase "once in a while," there are plenty of synonyms that can help you get your point across. Some alternatives include "occasionally," "intermittently," "sporadically," "infrequently," and "irregularly." Each of these phrases can add a slightly different tone or emphasis to your writing depending on the context. So the next time you're tempted to use "once in a while," consider incorporating one of these synonyms instead.