When it comes to finding synonyms for the phrase "day-to-day," there are a number of options available that can be used to convey the same meaning. At its core, "day-to-day" refers to the routine and regular activities and actions that occur on a daily basis. Some possible synonyms for this phrase might include "routine," "everyday," "mundane," or "ordinary." Other options might include "daily," "regular," or "typical." Depending on the context in which the phrase is being used, there may be some variations that are more appropriate than others, but all of these words can be used to convey the same overall sense of daily activities and routines.