Finding synonyms for the term "tried and true" can be a bit tricky, as the phrase is commonly used to describe something that has been proven to work over time. However, some alternatives to "tried and true" might include "tested and trusted," "proven and reliable," "time-honored," "established," or "stalwart." Each of these phrases conveys a similar sense of reliability and consistency as "tried and true," and could be used to describe anything from a trustworthy friend to a dependable business strategy. Ultimately, the best synonym for "tried and true" will depend on the context in which it is being used and the tone or message the speaker is trying to convey.